Question: 201

Employees are concerned about sensitive data being printed on a shared multifunction printer located in a high-traffic hallway. Which of the following should a technician do to address this concern?

  1. Set up a PIN for user authentication at the printer
  2. Relocate the printer to an unused office space
  3. Configure printing of sensitive data through a specific tray
  4. Schedule print jobs to be released at certain times

Answer: A

Explanation:

Comprehensive and Detailed Explanation From Exact Extract: PIN printing (also known as secure printing) ensures that documents are held in a queue until the authorized user enters a PIN directly at the printer. This prevents unauthorized viewing of confidential documents.

Printer Security Secure printing with PIN authentication ensures only the document owner can release sensitive print jobs.

Question: 202

An office manager wants to block all outbound internet traffic but continue to enable all inbound traffic. Which of the following should a technician configure to achieve this goal?

  1. MAC filtering
  2. Network interface card
  3. Firewall
  4. Switch

Answer: C

Explanation:

Comprehensive and Detailed Explanation From Exact Extract: A firewall allows for detailed traffic control, including blocking outbound connections while allowing inbound ones. This is contrary to typical security setups, but it can be configured via advanced firewall rules.

Firewall Configuration Firewalls can allow inbound traffic and deny outbound connections based on on figured rules.

Question: 203

A thief stole a company phone and successfully extracted confidential company information from the device. Which of the following should have been used to prevent the extraction?

  1. GPS
  2. EPS
  3. eSIM
  4. MDM

Answer: D

Explanation:

Comprehensive and Detailed Explanation From Exact Extract: MDM (Mobile Device Management) enforces security policies, such as encryption, remote wipe, and access control. It could have remotely wiped the device or locked it down to prevent data theft.

Mobile Device Security MDM tools provide remote wipe and security policy enforcement, essential for protecting mobile data.

Question: 204

Which of the following RAID configurations can lose two drives without data loss?

  1. RAID 0
  2. RAID 1
  3. RAID 5
  4. RAID 6

Answer: D

Explanation:

Comprehensive and Detailed Explanation From Exact Extract: RAID 6 uses two parity blocks, allowing it to tolerate the failure of two drives without losing data. RAID Types RAID 6 supports dual-drive failure tolerance with dual parity, making it more fault-tolerant than RAID 5.

Question: 205

An IT support specialist needs to configure several laptops to access local resources wherever the employees are while in the office. Which of the following would best meet this requirement?

  1. Configure cellular location services to facilitate device identification
  2. Set up a Wi-Fi connection with a common SSID
  3. Enable Bluetooth connectivity in all laptops
  4. Create roaming profiles for each laptop

Answer: B

Explanation:

A consistent Wi-Fi SSID across all APs allows users to roam throughout the office while maintaining access to local resources without reconnecting manually.

Wireless networking configuration

SSID broadcast and roaming

WLAN infrastructure

The study guide explains that a common SSID enables seamless roaming and uninterrupted access to network resources.

Question: 206

A technician replaces a laptop’s failed motherboard. During validation testing, the wireless is slow and shows a weak signal. Which of the following should the technician do first to verify the source of the issue?

  1. Contact the manufacturer
  2. Reseat antenna connections
  3. Restart the access point
  4. Install a new wireless adapter

Answer: B

Explanation:

Laptop Wi-Fi antennas run through the display bezel and connect via small coaxial clips. After motherboard replacement, these are often not fully seated, causing weak or unstable Wi-Fi.

CompTIA Concepts:

Laptop hardware troubleshooting

Antenna connector checks after repair

WLAN performance issues caused by antenna misalignment

Question: 207

Which of the following will a company most likely use to control which websites a user can access?

  1. Proxy server
  2. Spam gateway
  3. DHCP server
  4. RADIUS server

Answer: A

Explanation:

A proxy server acts as an intermediary between client devices and the internet. One of its primary functions is URL filtering, web-content restriction, and logging user activity. When a user attempts to connect to a website, the request first goes to the proxy, where filtering rules determine whether the site is allowed or blocked. CompTIA A+ 220-1201 emphasizes that proxies help organizations control outbound traffic, enforce browsing policies, block malicious or inappropriate content, and improve security through caching.

Spam gateways only filter email, DHCP assigns IP addresses, and RADIUS handles authentication, none of which enforce website restriction. Therefore, the correct solution for content control is a proxy server, as stated in the Networking domain of the A+ curriculum.

Question: 208

Which of the following technologies is most used in portable devices?

  1. ECC
  2. RAID
  3. SATA
  4. SODIMM

Answer: D

Explanation:

Portable devices such as laptops, small-form-factor computers, and mini-PCs use SODIMM (Small Outline DIMM) memory modules. CompTIA A+ explains that SODIMMs are physically smaller and consume less power than standard DIMMs, making them ideal for mobile systems where space and energy efficiency are critical. Unlike ECC memory, which is primarily used in servers, or RAID which is a storage redundancy methodology rather than a memory type SODIMM is specifically designed for compact computing devices. SATA is a storage interface, not a memory form factor.

The A+ study guide clearly lists SODIMM as the standard laptop memory type because of its compact footprint and compatibility with mobile motherboard layouts. This makes SODIMM the most widely implemented memory technology in portable devices.

Question: 209

Which of the following is commonly affected by high latency?

  1. Satellite
  2. Fiber
  3. Cable
  4. DSL

Answer: A

Explanation:

CompTIA A+ emphasizes that satellite internet connections inherently suffer from extremely high latency because the data must travel from the user’s antenna to satellites orbiting tens of thousands of miles above Earth and back. Although satellite systems offer broad geographic coverage, this long travel distance introduces noticeable delays often 500ms or more.

Fiber, cable, and DSL operate through terrestrial wiring and have far lower latency due to short signal paths. Fiber, in particular, is the fastest and lowest-latency connection type. Satellite delay significantly impacts VoIP calls, video conferencing, online gaming, and real-time applications. The A+ exam specifically notes latency as a major performance characteristic of satellite service, distinguishing it from other broadband technologies.

Question: 210

Which of the following connectors supports High-bandwidth Digital Content Protection (HDCP)?

  1. DVI-A
  2. F-type
  3. VGA
  4. DisplayPort

Answer: D

Explanation:

DisplayPort is a fully digital video interface that supports HDCP (High-bandwidth Digital Content Protection), a digital rights-management protocol used to protect copyrighted content such as movies, streaming video, and Blu-ray playback. The CompTIA A+ study guide notes that DisplayPort and HDMI support HDCP, while analog connections like VGA and DVI-A do not support HDCP because analog signals cannot enforce digital content protection.

F-type connectors are used for coaxial cabling (cable TV, satellite), not digital video output. DisplayPort’s support for encrypted high-definition video streams makes it the correct answer and aligns with CompTIA’s coverage of display connectors and digital content protection technologies.

Question: 211

Which of the following is used to confirm that a physical port is working?

  1. Network tap
  2. Crimper
  3. Patch panel
  4. Loopback plug

Answer: D

Explanation:

A loopback plug is a diagnostic tool used to test whether a physical port such as an Ethernet NIC port or serial port is capable of sending and receiving its own signal. When inserted, it “loops” outgoing signals back into the device, confirming the port’s transmit/receive functionality.

CompTIA A+ emphasizes loopback plugs as essential tools during hardware and network troubleshooting, especially when isolating physical port or NIC failures.

Network taps passively monitor traffic, crimpers attach RJ45 connectors to cables, and patch panels organize cabling none of these verify port-level functionality. Therefore, only a loopback plug can confirm that a port is working correctly by testing signal integrity and hardware responsiveness.

Question: 212

Which of the following allows an organization to provide remote desktop resources without providing physical workstations to its users?

  1. RMM
  2. SaaS
  3. VDI
  4. Containers

Answer: C

Explanation:

Virtual Desktop Infrastructure (VDI) hosts user desktops on centralized servers rather than physical PCs. Users access a virtual desktop session remotely through thin clients, laptops, or web browsers.

The CompTIA A+ cloud-computing domain explains that VDI improves manageability, security, and resource efficiency by allowing IT to centralize OS images, apps, and updates.

SaaS provides applications not desktops. RMM is for monitoring and managing devices. Containers  virtualize applications, not full desktops.

VDI enables organizations to avoid purchasing physical desktops while still delivering full computing environments to users, which aligns with the A+ virtualization objectives and remote-access concepts.

Question: 213

A student configures a wireless SOHO network to connect four laptops and one multifunction printer. Which setting ensures the printer is always available?

  1. Dynamic IPs for laptops, static IP for printer on same subnet
  2. Manually assign public IPs to laptops and printer
  3. Use APIPA for laptops and connect printer directly to ISP router
  4. Use dynamic IP addressing for all devices

Answer: A

Explanation:

Printers in SOHO environments must maintain a consistent IP address so devices can regularly locate them for scanning and printing tasks. CompTIA A+ emphasizes assigning static IPs to network printers to prevent address changes that occur with DHCP.

Laptops can remain DHCP clients because their address consistency is less critical. APIPA cannot communicate across networks and therefore should not be used. Assigning public IPs is incorrect and unsafe.

By giving the printer a static IP within the same subnet, all laptops can reliably access it, and the network remains organized and functional exactly as the A+ objectives recommend.

Question: 214

A user on the edge of a building reports slow Wi-Fi and intermittent drops. Which action will solve the issue?

  1. Enable the 5GHz band
  2. Run ipconfig /flushdns
  3. Upgrade laptop to Wi-Fi 6 NIC
  4. Install additional wireless APs around the location

Answer: D

Explanation:

Wireless coverage issues at the physical edges of a building are typically caused by weak RF signal strength. The CompTIA A+ study material says the best solution is to add additional wireless access points (APs) or implement a mesh system to extend coverage and eliminate dead zones. Enabling 5GHz often worsens the issue because 5GHz has shorter range. Wi-Fi 6 NIC upgrades improve performance but do not increase signal reach. Flushing DNS does not affect wireless coverage.

Installing more APs ensures stronger coverage, better signal-to-noise ratio, and stable connectivity aligning with CompTIA’s wireless troubleshooting best practices.

Question: 215

A user replaces their PC power supply and connects it to the components, but the PC fails to start. What is the most likely cause?

  1. The computer requires additional RAM
  2. The wattage is insufficient
  3. The 4-pin CPU power connector is not connected
  4. The PSU only works in redundant setups

Answer: C

Explanation:

Modern motherboards require both the 24-pin ATX connector and a 4-pin or 8-pin CPU power connector. If the CPU power connector is not attached, the motherboard will receive power but the system will not boot. CompTIA A+ specifically lists this as a common mistake after replacing a power supply.

Insufficient wattage may cause instability, but usually the system still attempts to start. RAM does not prevent power-on if missing; instead, the system produces beep codes. Redundant PSUs are used in servers, not standard desktops.

Therefore, the missing CPU power connector is the most likely cause, and this scenario reflects typical troubleshooting steps outlined in A+ hardware diagnostics.

Question: 216

A developer wants to protect critical data from hard drive failure. Their workstation has two hard drives. Which RAID level should they use?

  1. RAID 0
  2. RAID 1
  3. RAID 5
  4. RAID 10

Answer: B

Explanation:

RAID 1, also known as disk mirroring, duplicates data identically to two drives, ensuring full redundancy if one drive fails. Because the workstation only has two drives, RAID 1 is the only RAID level that provides fault tolerance under this constraint, exactly as described in the CompTIA A+ study guide.

RAID 0 offers no redundancy, RAID 5 requires at least three drives, and RAID 10 requires at least four drives.

RAID 1 is the recommended configuration for small environments or workstations that rely on data integrity and quick recovery, matching CompTIA’s guidance for redundancy in systems with limited drive availability.

Question: 217

A student configures a wireless SOHO network to connect four laptops and one multifunction printer. All laptops must have internet access and be able to use the printer. Which of the following settings ensures the printer is always available?

  1. Configure dynamic IPs for the laptops and a static IP for the printer on the same subnet.
  2. Manually assign IP addresses to the laptops and printer based on the public IP from the ISP.
  3. Use APIPA for laptops and connect the printer to the ISP router.
  4. Use dynamic IP addresses from the ISP router for all the devices.

Answer: A

Explanation:

CompTIA A+ stresses that printers must use static IP addresses to remain consistently reachable on a LAN. When using DHCP, the printer’s IP address may change, causing laptops to lose access. By assigning a static IP within the same subnet, the printer becomes a stable, discoverable network resource for all laptops.

Using dynamic IPs for the laptops is perfectly acceptable in SOHO environments, because clients don’t require permanent IPs. Assigning public IPs (Option B) is incorrect and unsafe. APIPA (169.254.x.x) does not route and cannot reach the internet or a standard printer. Using dynamic ISP assigned IPs for all devices (Option D) is also incorrect because ISP routers typically give only one public IP, not multiple internal ones.

Therefore, to ensure the printer is always reachable, the correct configuration is: DHCP for laptops, static IP for printer a best practice detailed in CompTIA’s networking and SOHO setup guidelines.

Question: 218

A Wi-Fi router is set up in a central room. A user on the outer edge of the building reports slow connections and intermittent internet drops. Which of the following actions will solve the issue?

  1. Enabling the 5GHz band
  2. Running the flushdns command
  3. Upgrading the laptop to a Wi-Fi 6 NIC
  4. Installing additional wireless APs around the location

Answer: D

Explanation:

CompTIA A+ explains that Wi-Fi issues at the edges of a building are typically caused by weak signal coverage, not client configuration. The recommended solution is to add additional wireless access points (APs) or mesh extenders to expand coverage and eliminate dead zones.

Enabling 5GHz would worsen the problem because 5GHz has shorter range and penetrates walls less effectively than 2.4GHz. Flushing DNS affects name resolution, not wireless signal strength.

Upgrading the NIC to Wi-Fi 6 improves maximum throughput but still depends on sufficient signal, which the user does not have.

Additional APs ensure strong signal-to-noise ratio, consistent throughput, and stable roaming all solutions emphasized in the A+ wireless troubleshooting section. Therefore, option D is the correct and CompTIA-aligned fix.

Question: 219

The power supply for a user’s gaming PC fails. The user installs a new power supply and connects it to the motherboard, GPU, and SSDs, but the computer will not start. What is the most likely cause?

  1. The computer requires more RAM
  2. The wattage is insufficient
  3. The user did not connect the 4-pin CPU connector
  4. The power supply only works in redundant configurations

Answer: C

Explanation:

CompTIA A+ repeatedly highlights that modern motherboards require two power connectors: The 24-pin ATX main power connector The 4-pin or 8-pin CPU power connector (EPS connector) If the CPU power connector is missing, the system will not POST, even though other components appear to have power. This is a very common mistake after replacing PSUs and is specifically noted in CompTIA materials as a frequent cause of “no boot” scenarios.

Insufficient wattage usually causes instability, not a total failure to start. RAM is unrelated to powering on. Redundant PSUs are used in servers, not gaming PCs.

Thus, the missing CPU power connector is the correct diagnosis and matches A+ hardware troubleshooting guidelines.

Question: 220

A developer wants to ensure their critical data is protected from hard drive failure. Their workstation has two hard drives. Which RAID level should they use?

  1. RAID 0
  2. RAID 1
  3. RAID 5
  4. RAID 10

Answer: B

Explanation:

RAID 1 is known as mirroring. It duplicates all data to both drives simultaneously, providing redundancy in the event of a single drive failure. CompTIA A+ teaches that RAID 1 is ideal when reliability is the priority and only two drives are available exactly matching this scenario. RAID 0 offers no redundancy. RAID 5 requires three or more drives. RAID 10 requires four or more drives.

Since the workstation has only two drives, RAID 1 is the only RAID configuration providing data protection and is heavily featured in CompTIA’s coverage of RAID technologies, their requirements, and their purposes in fault tolerance.

Question: 221

A user’s laptop keyboard is distorted and no longer flat. Which laptop component most likely failed?

  1. Battery
  2. RAM
  3. Keyboard
  4. HDD

Answer: A

Explanation:

CompTIA A+ highlights that swollen or expanding batteries especially lithium-ion batteries can physically warp the laptop chassis, keyboard, or trackpad. This happens when internal chemical reactions cause the battery to swell. Distorted keyboards, bulging trackpads, and lifted chassis panels are classic symptoms of battery failure. RAM and HDD issues do not cause physical deformation. A broken keyboard may malfunction electronically, but it will not bulge upward unless forced by something underneath typically an expanding battery.

The A+ safety domain also warns technicians not to puncture swollen batteries and to replace them immediately due to fire hazards. Therefore, a failing (swollen) laptop battery is the most likely cause.

Question: 222

Which storage device is best suited for a high-performance gaming laptop requiring fast data access?

  1. 1TB SATA 2.5″ HDD
  2. 512GB NVMe M.2 SSD
  3. 750GB SATA III HDD
  4. 1TB SAS SSD

Answer: B

Explanation:

Gaming laptops prioritize speed, low latency, fast read/write times, and quick loading. CompTIA A+ explains that NVMe M.2 SSDs provide the fastest consumer storage available due to their use of the PCIe bus, which delivers significantly higher performance compared to SATA-based drives.

HDDs (Options A and C) are mechanical and have slow seek times, making them unsuitable for high performance gaming. SAS SSDs (Option D) are enterprise-grade, rarely used in laptops, and require SAS controllers not found in consumer systems. Thus, a 512GB NVMe M.2 SSD offers the best performance, fastest boot times, rapid texture loading, and optimal gaming responsiveness fully aligning with A+ hardware performance recommendations.

Question: 223

A desktop can connect to a file server but cannot access the internet. The ipconfig /all output shows a correct IP and DNS but no default gateway. What will most likely restore internet access?

  1. Flushing the DNS cache
  2. Choosing a different IPv6 address
  3. Setting the default gateway
  4. Disabling NetBIOS

Answer: C

Explanation:

CompTIA A+ teaches that the default gateway is required for any device to communicate with external networks such as the internet. Without a configured default gateway, the computer can communicate only with devices on the same local subnet explaining why the file server is reachable. DNS and IPv6 settings are not the issue; without a gateway, external routing cannot occur. Flushing DNS affects hostname resolution, not routing. NetBIOS settings have no effect on internet connectivity.

Adding or correcting the default gateway (usually the router’s LAN IP, such as 192.168.1.1) will allow the PC to route traffic beyond its local network.

This aligns precisely with CompTIA’s troubleshooting steps for missing or incorrect gateway configuration.

Question: 224

A SOHO user cannot connect to the internet. Their configuration shows:

IP: 192.168.223.15

Mask: 255.255.255.0

Gateway: 192.168.233.1

DNS: 8.8.8.8, 4.2.2.1, 4.2.2.2

Baseline documentation shows valid subnet range: 192.168.200.0–192.168.232.255.

Which setting must be changed?

  1. Tertiary DNS
  2. Secondary DNS
  3. Primary DNS
  4. IP Address
  5. Gateway
  6. Subnet mask

Answer: E

Explanation:

The baseline documentation says the valid network range ends at 192.168.232.255, but the user’s gateway is 192.168.233.1, which is outside the permitted network range. CompTIA A+ emphasizes that devices must have a gateway inside their own subnet.

Given a mask of 255.255.255.0, the user’s subnet is 192.168.223.x, so the gateway must be in 192.168.223.x, not 192.168.233.x. DNS settings are public and acceptable. The IP address and subnet mask are valid within the documented address space.

Therefore, the incorrect setting is the gateway, which prevents external routing. Correcting it resolves the connection issue, matching CompTIA’s routing and TCP/IP troubleshooting procedures.

Question: 225

A technician checks a RAID 5 array and sees a S.M.A.R.T. alert on one disk, but the array still shows healthy. What should the technician do next?

  1. Run chkdsk /f
  2. Disable write caching
  3. Rebuild the RAID array
  4. Replace the failing drive

Answer: D

Explanation:

CompTIA A+ teaches that S.M.A.R.T. warnings indicate imminent drive failure. Even if the RAID controller reports the array as “healthy,” a S.M.A.R.T. alert means the drive should be replaced immediately.

RAID 5 provides redundancy for one drive failure, but technicians should replace the degrading drive before it fails fully, ensuring the rebuild happens proactively.

Running chkdsk affects file systems, not drive health. Disabling write caching is unrelated. Rebuilding the array should only occur after replacing the faulty drive.

Replacing the drive prevents a catastrophic dual-drive failure scenario, which RAID 5 cannot survive. This approach aligns with CompTIA troubleshooting guidelines for RAID maintenance and S.M.A.R.T. diagnostics.

Question: 226

A technician receives complaints that a network fileshare is slow and now unavailable. The server is powered on and accessible via RDP. What should the technician check next?

  1. RAID array status
  2. Data backup integrity
  3. Network connectivity
  4. Available memory

Answer: A

Explanation:

A file share becoming slow over time and then failing completely strongly suggests storage subsystem degradation, often due to a failing RAID array. CompTIA A+ explains that slow file access is an early sign of a degraded array, and eventual unavailability indicates the array may have failed or entered a critical state.

Since the technician can still RDP into the server, the OS is functioning, meaning memory is likely not the issue. Network connectivity is sufficient for remote login. Backup integrity does not affect real time file availability.

Thus, the next step is to check the RAID array status, which directly controls the server’s storage performance and availability precisely what CompTIA identifies as the primary point of failure in such scenarios.

Question: 227

A company is installing a new shared printer for all employees. Some managers need to print sensitive HR material, and the company does not want to purchase separate printers. Which of the following should the company implement?

  1. Audit logging
  2. Secure printing
  3. Wired connectivity
  4. Duplex settings

Answer: B

Explanation:

Secure printing ensures that print jobs are not immediately output to the tray but instead held in a secure queue. The user must enter a PIN, password, or badge authentication directly at the printer to release the job. CompTIA A+ emphasizes secure printing as the correct method for environments where sensitive information such as HR files, performance reviews, or confidential reports must not be viewed by unauthorized individuals. Audit logging tracks usage but does not protect documents from being seen on the printer tray. Wired connectivity has no relation to security or confidentiality. Duplex is simply a printing mode. Secure printing is widely used in corporate environments so shared devices can remain shared without compromising sensitive data. The A+ curriculum describes this as a security control that ensures confidentiality in shared-print environments, making Secure Printing the proper solution.

Question: 228

A user’s laptop is projecting an image upside down when connected to a ceiling-mounted projector. Which of the following should the technician do to best resolve the issue?

  1. Change the input source
  2. Rotate the image from the laptop
  3. Adjust the display frequency
  4. Flip the image vertically from the projector

Answer: D

Explanation:

Ceiling-mounted projectors are typically installed upside down, and therefore include a built-in “Ceiling Mount” or “Vertical Flip” setting within their display menu. CompTIA A+ emphasizes that projectors provide their own orientation controls intended specifically for this installation scenario. Adjusting orientation from the laptop rotates the desktop, not the projected output configuration. Changing input sources does not affect image orientation. Display frequency affects refresh rate and flickering, not physical image rotation. Flipping the image directly from the projector ensures the display is oriented correctly regardless of the device connected. This is the method recommended in A+ material under display configuration and projector troubleshooting, which covers keystone correction, rotation, and mounting modes. Thus, the correct solution is to flip the image vertically using the projector’s built-in settings.

Question: 229

Which of the following will most likely be used in a testing environment to execute unauthorized or experimental code without affecting production systems?

  1. Virtual machines
  2. Hybrid cloud
  3. Load balancers
  4. Application gateways

Answer: A

Explanation:

CompTIA A+ strongly emphasizes that virtual machines (VMs) are ideal for testing potentially unsafe software, malware samples, or experimental code because they isolate the environment from the host system. VMs allow snapshots, cloning, and rollback functionality, which makes them essential in development, QA, and cybersecurity environments where code might be unstable or harmful. Hybrid cloud refers to infrastructure strategy, not code execution isolation. Load balancers distribute production traffic but have no testing or sandboxing purpose. Application gateways filter traffic but do not provide execution environments. Virtual machines create a safe sandbox where failure, infection, or corruption is contained. This is covered in the Virtualization and Cloud Computing domain of the CompTIA A+ exam, making VMs the correct tool for executing unauthorized code safely.

Question: 230

A user experiences intermittent Wi-Fi performance issues only in their office. Nearby RJ45 ports do not provide connectivity, but the user connects fine in other campus areas. AP coverage is weak in the user’s office. What is the most likely cause?

  1. APs are installed too far from the user’s office
  2. Brute-force attempts are causing drops
  3. Ports near the office are disabled
  4. The laptop has malware contacting unauthorized sites

Answer: A

Explanation:

The scenario states that the Wi-Fi signal is weak in the user’s office, but the laptop works perfectly in other locations. CompTIA A+ stresses that weak signal strength is caused by distance from the access point, physical obstructions, or poor AP placement. Since other users are not affected and the laptop works elsewhere, the issue is localized signal weakness. Disabled RJ45 ports (Option C) matter only for wired connections, and the user relies on Wi-Fi. Malware (Option D) would affect performance everywhere, not just in one office. Brute-force attacks

(Option B) would trigger security logs and affect multiple users.

Weak signal caused by AP distance or line-of-sight issues is the cause, as detailed in A+ wireless troubleshooting procedures related to low RSSI, interference, and AP placement.

Question: 231

An administrator is helping a new employee configure email on a smartphone. The employee also needs access to a shared mailbox. Which is the best email client for this situation?

  1. Open-source
  2. Built-in
  3. Corporate
  4. Employee preferred

Answer: C

Explanation:

A corporate-provided email client is designed to integrate with enterprise services such as shared mailboxes, MDM policies, and enterprise authentication. CompTIA A+ states that corporate clients support additional management features, secure authentication protocols (such as OAuth or Kerberos), and policy-enforced access control essential for accessing shared or departmental mailboxes.

Open-source clients (Option A) may lack compatibility with enterprise environments. Built-in smartphone clients (Option B) often don’t support complex mailbox structures such as shared mailboxes. Employee-preferred apps (Option D) are discouraged because they may not meet security requirements.

Corporate clients ensure full compatibility with organizational mail servers, shared folders, calendars, and enterprise security features, making corporate email clients the correct choice according to CompTIA’s mobile device email configuration standards.

Question: 232

An office manager must scan a 300-page contract quickly. They are worried about scanning each page one at a time. Which feature will speed up the process?

  1. Flatbed scanner
  2. Duplexing
  3. Automatic document feeder
  4. Orientation configuration

Answer: C

Explanation:

CompTIA A+ details that an Automatic Document Feeder (ADF) allows multi-page documents to be scanned automatically without manually placing each sheet on the flatbed. This drastically increases scanning efficiency for large documents.

Flatbed scanners require manual placement for every page. Duplexing scans both sides of a page but does not feed multiple sheets by itself. Orientation configuration only affects image alignment. The ADF is explicitly highlighted in the A+ study guide as the primary feature used in business environments when scanning high-volume documents efficiently. Thus, the ADF is the correct solution because it automates page feeding and dramatically reduces scanning time, especially for hundreds of pages.

Question: 233

Which DNS record is used by DMARC to verify the authenticity of email servers?

  1. MX
  2. CNAME
  3. TXT
  4. A

Answer: C

Explanation:

CompTIA A+ explains that DMARC (Domain-based Message Authentication, Reporting, and Conformance) relies on TXT DNS records to define its policies. TXT records allow administrators to publish arbitrary text-based configuration data, including DKIM and SPF policies, which DMARC references.

MX records identify mail servers, A records map IP addresses, and CNAME records create aliases none are used to store DMARC policy rules. DMARC improves email authenticity by requiring SPF and DKIM alignment and specifying how receiving servers should handle failed validations. The A+ exam explicitly mentions TXT records as the method used for SPF, DKIM, and DMARC storage.

Therefore, the correct answer is the TXT record, which stores the policy used by DMARC to authenticate senders and prevent spoofing.

Question: 234

A user reports intermittent Wi-Fi issues in an open office. Other users are not affected. What is the most likely cause?

  1. Interference from other Wi-Fi signals
  2. All users are on the same frequency
  3. The laptop’s wireless card is malfunctioning
  4. The antenna is near a device creating electromagnetic interference

Answer: C

Explanation:

Since only one user experiences the issue in a shared environment where everyone else has stable connectivity, CompTIA A+ suggests that the problem is most likely with the client device, not the network. The wireless card may be failing, overheating, or experiencing intermittent hardware faults. If other Wi-Fi signals or EMI (electromagnetic interference) were the cause, multiple users would be affected. Frequency congestion (Option B) also impacts groups, not a single device.

CompTIA stresses that isolating whether the issue affects one user or many helps determine whether the fault lies with the network or device. Because the problem is isolated, the most probable cause is a malfunctioning wireless NIC in the user’s laptop.

Question: 235

A user reports that scanned or copied pages from an MFP show vertical lines down the page. The printer processes print jobs correctly. What should the technician do?

  1. Replace the transfer roller
  2. Remove the pickup rollers
  3. Clean the glass bed
  4. Apply a maintenance kit

Answer: C

Explanation:

CompTIA A+ teaches that vertical lines on scanned or copied documents but not printed documents indicate a dirty or smudged scanner glass or ADF glass strip. Dust, ink smears, or debris create a line because the scanning sensor repeatedly passes over the same contaminated area.

If printing works normally, internal printer components such as the transfer roller or pickup rollers are not at fault. Maintenance kits apply to internal wear components like rollers, belts, or fusers not scanning artifacts.

Cleaning the scanner glass or ADF strip directly addresses this common problem. The A+ exam frequently includes troubleshooting questions about print vs. scan artifacts, and this scenario is a classic example. Therefore, the correct solution is to clean the glass bed (or ADF strip).

Question: 236

Which of the following are radio frequency connections? (Select two.)

  1. Cable
  2. Satellite
  3. DSL
  4. Cellular
  5. Ethernet
  6. Fiber

Answer: B,D

Explanation:

CompTIA A+ explains that radio frequency (RF) connections use electromagnetic waves instead of copper or optical cabling. Satellite uses RF signals transmitted to and from orbiting satellites, while cellular networks (3G/4G/5G) use RF communications via cell towers.

Cable uses coaxial wired infrastructure, DSL uses telephone lines, Ethernet is twisted-pair copper, and fiber uses light instead of RF. Satellite and cellular are the only technologies in the list that rely on wireless radio frequency transmission as their medium. The A+ networking domain emphasizes understanding the physical media of WAN technologies and distinguishing wired vs. wireless connectivity, making B and D the correct answers.

Question: 237

A company will retire a legacy application in one year but wants to decommission the physical environment now. Which migration method is best?

  1. Relocating the server to a colocated data center
  2. Performing a physical-to-virtual conversion and hosting on IaaS
  3. Deploying all components using PaaS
  4. Taking a backup and shutting down the server

Answer: B

Explanation:

CompTIA A+ emphasizes virtualization as an ideal solution during system phase-out or transition periods. The correct approach here is a P2V (physical-to-virtual) conversion and hosting the server in an Infrastructure as a Service (IaaS) environment. This removes the need for physical hardware while still keeping the application operational for its final year. IaaS provides full control over OS and applications, making it suitable for legacy systems that cannot be rewritten. Colocation (Option A) still requires physical hardware. PaaS (Option C) is inappropriate because PaaS requires rewriting or replatforming the application. Shutting down the server after a backup (Option D) makes the application immediately unusable.

Thus, the best method is to convert to a virtual machine and host it on IaaS.

Question: 238

An organization upgrades all desktops to Windows 11 and must ensure protection from malicious software at startup. Which option should be enabled?

  1. Trusted Platform Module
  2. Hardware security module
  3. Secure Boot
  4. BIOS password

Answer: C

Explanation:

CompTIA A+ explains that Secure Boot is a UEFI security feature that prevents unauthorized or malicious bootloaders, rootkits, and unsigned OS loaders from starting during the boot process. Secure Boot verifies digital signatures on the OS and critical boot files before allowing startup, ensuring the system has not been tampered with. TPM (Option A) provides encryption key storage and is used for BitLocker, but alone does not block malicious bootloaders. HSMs (Option B) are enterprise cryptographic devices, not PC boot protection features. BIOS passwords (Option D) restrict access to configuration but do not protect against malicious boot-level malware.

Windows 11 specifically requires Secure Boot, making it the correct protection mechanism for preventing startup-level malware.

Thus, Secure Boot is the proper choice.

Question: 239

A company implements a new policy that prohibits users from installing unapproved applications on corporate tablets. Which of the following should the technician use to enforce this policy?

  1. MDM
  2. ACL
  3. DRM
  4. PAM

Answer: A

Explanation:

Mobile Device Management (MDM) is the technology used by organizations to centrally configure, secure, and control mobile devices such as smartphones and tablets.

The CompTIA A+ Core 1 (220-1201) objectives specify that MDM solutions allow administrators to implement and enforce security and usage policies, including:

Application control (whitelisting and blacklisting)

Restricting installation of unapproved applications

Enforcing corporate compliance requirements

Remotely managing mobile device configurations

This directly applies to the scenario: the company wants to prevent users from installing unapproved apps on corporate tablets.

MDM enforces this through:

App whitelisting → only approved apps can be installed

App blacklisting → specific apps are blocked

Locked-down app stores → only corporate-approved app stores or catalogs

This is exactly the function MDM is designed for in enterprise mobile security and management.

Why the Other Options Are Incorrect

B . ACL (Access Control List)

ACLs control network or file-system access, such as allowing or denying IP addresses, ports, or file permissions.

They cannot control app installation behavior on mobile devices.

C . DRM (Digital Rights Management)

DRM protects digital content from unauthorized copying or distribution.

It does not restrict which applications can be installed on a mobile device.

D . PAM (Privileged Access Management)

PAM controls administrative or privileged accounts in enterprise environments.

It is unrelated to app-installation restrictions on tablets.

Question: 240

After a user builds their first PC, the user needs to install the operating system from a USB drive. Which of the following should the user configure next?

  1. BIOS password
  2. PXE boot
  3. Secure Boot
  4. Boot order

Answer: D

Explanation:

When installing an operating system from external media (USB flash drive), the motherboard firmware must be instructed to check that device before checking the internal storage.

The CompTIA A+ official objectives describe that technicians must know how to access UEFI/BIOS settings and configure boot priority. Installing an OS from USB requires: Entering UEFI/BIOS setup

Navigating to the Boot or Startup menu

Setting the USB drive as the first boot device

Saving and exiting to allow the computer to boot from the USB installer

This process is specifically referenced in CompTIA A+ material under “BIOS/UEFI settings,” where boot sequence / boot order is a fundamental configuration needed for OS installation.

Thus, the next step after assembling the PC is to modify the boot order to allow the system to boot from the USB installation media.

Why the other options are incorrect

A . BIOS password

Used for system access security; has no relevance to installing an OS from USB.

B . PXE boot

Used for network-based installations, not USB installations.

C . Secure Boot

Controls OS signature validation; not required to be changed for USB installation and is not the next required step.

Final Answer: D

Question: 241

An administrator is configuring a SOHO network. The network scope requires static IP addresses for printers. Which of the following must the administrator set manually? (Select two.)

  1. DHCP
  2. Subnet mask
  3. Default gateway
  4. DNS
  5. Reservations
  6. Exclusions

Answer: B,C

Explanation:

When assigning a static IP address to a network device such as a printer, the administrator must manually enter all information that a DHCP server would normally provide automatically.

CompTIA A+ networking fundamentals explain that a statically assigned host requires:

IP address (set manually)

Subnet mask (must be manually configured to define the network boundary)

Default gateway (must be manually assigned so the device can communicate outside its subnet)

DNS (also typically required, but in SOHO printer configs, it is not always mandatory unless name resolution is needed)

The question asks specifically: Which must be set manually?

The two required components for every static IP assignment in a CompTIA-compliant small office network are:

✔ B. Subnet mask

Defines the network and host portions of the IP address. Must be manually entered for static IPs.

✔ C. Default gateway

Allows communication outside the local network. Must also be manually set for static IP devices.

Why the other options are incorrect

A . DHCP

Not used in static addressing. DHCP is automatic; static addressing bypasses it.

D . DNS

Not always required for printers unless hostname resolution is needed. The question asks for what must be set manually.

E . Reservations

DHCP reservations create “static-like” addresses via DHCP, not manual configuration.

F . Exclusions

Used to prevent DHCP from assigning certain IPs; not part of configuring a static IP on a device.

Question: 242

Which of the following characteristics differentiates DDR4 RAM from DDR3 RAM?

  1. Lower operating voltage
  2. Higher latency
  3. Increased DIMM width
  4. Single-sided modules

Answer: A

Explanation:

CompTIA A+ Core 1 memory standards describe the differences between DDR generations. One of the key improvements in DDR4 over DDR3 is reduced operating voltage, which allows lower power consumption and increased efficiency.

DDR3 operates at 1.5V (some variants 1.35V)

DDR4 operates at 1.2V (some variants 1.05V LPDDR4)

This lower voltage is a recognized defining characteristic separating DDR4 from DDR3.

Other differences such as increased speed and internal bank structure exist, but the question specifically asks for the characteristic that differentiates DDR4 from DDR3 — and voltage is the correct, primary distinction used in CompTIA A+ materials.

Why the other options are incorrect

B . Higher latency

DDR4 generally has slightly higher CAS latency numbers, but due to increased speed, real latency is similar. This is not the standard differentiator referenced by CompTIA.

C . Increased DIMM width

DDR3 and DDR4 standard DIMMs both have a 64-bit data width.

D . Single-sided modules

Both DDR3 and DDR4 can be single- or double-sided; not a differentiating factor.

Final Answer: A

Question: 243

A company is separating its accounting department’s network from its customer service department’s network. Which of the following will accomplish this task?

  1. VPN
  2. DNS
  3. VLAN
  4. DHCP

Answer: C

Explanation:

CompTIA networking fundamentals describe VLANs (Virtual Local Area Networks) as a method to segment network traffic logically, even while using the same physical switch hardware.

A VLAN allows a company to:

Separate traffic by department

Improve security

Reduce broadcast domains

Control inter-department access

To separate accounting and customer service networks, VLANs are the industry-standard and the CompTIA-approved method.

Why the other options are incorrect

A . VPN – Used for secure remote connections, not internal LAN segmentation.

B . DNS – Resolves hostnames to IPs, not used for network separation.

D . DHCP – Assigns IP addresses; does not isolate network groups.

Final Answer: C

Question: 244

The Chief Information Security Officer asks a technician to inventory desktop PCs to determine which ones meet the requirements for Secure Boot. The technician must also configure the PCs for nonuser-controllable keys. Which of the following are necessary to meet the enhanced security requirements? (Select two).

  1. VDI
  2. BIOS password
  3. TPM
  4. UEFI
  5. Disabled boot drive
  6. USB permissions

Answer: C,D

Explanation:

To run Secure Boot, the system must have:

✔ UEFI firmware (not legacy BIOS)

Secure Boot is a UEFI feature that validates bootloaders using digitally signed keys stored in secure firmware.

✔ TPM (Trusted Platform Module)

The TPM stores cryptographic keys in tamper-resistant hardware, enabling secure key management that cannot be altered by normal users.

CompTIA materials describe TPM as essential for enhanced platform security and for storing validated boot keys when Secure Boot is enabled.

Together, UEFI + TPM provide:

Verified boot loader

Hardware-level key protection

Prevention of unauthorized OS tampering

Non-user-controllable secure key storage

Why the other options are incorrect

A . VDI – Virtual desktops; unrelated to Secure Boot hardware requirements.

B . BIOS password – Helps protect firmware settings but is not required for Secure Boot.

E . Disabled boot drive – Irrelevant to Secure Boot.

F . USB permissions – Not part of Secure Boot requirements.

Final Answer: C, D

Question: 245

Which of the following is an advantage of using the 2.4 GHz wireless frequency?

Questions and Answers PDF 187/419

  1. Communication between devices without external power
  2. Security for connections in close proximity
  3. Minimized structural interference
  4. Increased channel options

Answer: C

Explanation:

The CompTIA A+ wireless networking section describes key differences between 2.4 GHz and 5 GHz

Wi-Fi frequencies.

2.4 GHz provides:

Better range

Better wall penetration

Better performance through structures and obstacles

This means less interference from physical structures, which is the primary advantage of 2.4 GHz over 5 GHz.

This maps directly to:

✔ C. Minimized structural interference

Why the other options are incorrect

A . Communication without external power

Not related to Wi-Fi frequencies.

B . Security for close-proximity connections

No Wi-Fi frequency provides inherent security advantages.

D . Increased channel options

5 GHz has more channels, not 2.4 GHz.

Question: 246

Which of the following services are typically provided by a networked host to facilitate file sharing across different OSs? (Select two).

  1. NTP
  2. SMB
  3. IMAP
  4. FTP
  5. ROP
  6. LDAP

Answer: B,D

Explanation:

Comprehensive and Detailed Explanation To enable file sharing across different operating systems, CompTIA A+ emphasizes the use of:

✔ SMB (Server Message Block)

The primary file-sharing protocol used by Windows.

Also supported on macOS and Linux (via Samba).

Allows shared folders, printers, and network browsing.

✔ FTP (File Transfer Protocol)

A cross-platform file transfer service supported by all major OSs.

Commonly used to upload/download files between systems of different types.

These two protocols are explicitly listed in CompTIA objectives under network protocols and file services.

Why the other options are incorrect

A . NTP – Time synchronization, not file sharing.

C . IMAP – Email protocol, not related to file sharing.

E . ROP – Not a file-sharing protocol (Return-Oriented Programming = security exploit).

F . LDAP – Directory service for authentication, not file sharing.

Final Answer: B, D

Explanation:

Question: 247

A user reports that they cannot get their laptop to work with a video projector connected with an HDMI cable. The projector is turned on. The HDMI cable is securely connected on both ends, and the laptop displays properly on its own screen. The display mode is set to “Duplicate” on the laptop. Which of the following is most likely causing the issue?

  1. The projector does not support HDMI connections.
  2. The laptop display mode should be set to “Extend”.
  3. An HDMI port on the projector failed.
  4. The input source is incorrect on the projector.

Answer: D

Explanation:

CompTIA troubleshooting procedures emphasize confirming input source settings on the external display device.

Even if the HDMI cable is connected properly: The projector must be set to the correct input source (HDMI 1, HDMI 2, etc.). If the source is incorrect, the laptop will not display, even though the laptop output is functioning normally.

Since the projector is powered on, and the laptop is already set to “Duplicate,” and cables are good, the most likely cause is:

✔ The projector is set to the wrong input source.

This is a common real-world issue covered under “video and projector troubleshooting.”

Why the other answers are incorrect

A . Projector may support HDMI; this is not the “most likely.”

B . “Extend” is not required — “Duplicate” works for projectors.

C . A failed HDMI port is possible but not the most likely scenario.

Final Answer: D

Question: 248

A user’s laptop keyboard is distorted and is no longer flat. Which of the following components most likely failed?

  1. Battery
  2. RAM
  3. Keyboard
  4. HDD

Answer: A

Explanation:

CompTIA A+ describes swollen or warped laptop chassis components as a classic symptom of a failing or swollen lithium-ion battery.

A swollen battery can:

Warp the keyboard

Push the bottom panel outward

Bend or distort the laptop frame

This is a safety hazard and requires immediate replacement.

Why the other answers are incorrect

B . RAM – Cannot cause physical warping.

C . Keyboard – May fail electronically, but does not physically deform itself.

D . HDD – Located away from the keyboard and cannot distort the chassis.

Final Answer: A

Question: 249

A consultant is assessing the wireless configurations for a small office. The existing equipment uses WEP encryption and operates on the default channel. The office is in a crowded urban area with many nearby networks. Which of the following is the best way to improve the wireless network performance?

  1. Replacing the access point
  2. Disabling SSID broadcasting
  3. Enabling MAC address filtering
  4. Updating the firmware

Answer: A

Explanation:

The wireless environment is crowded, and the office is using:

WEP encryption → obsolete, insecure, and supported only by outdated hardware

Default channel → likely causes interference in a busy area

CompTIA A+ emphasizes:

WEP should be replaced with WPA2 or WPA3

Older APs that only support WEP cannot simply be updated

Newer APs also allow dual-band / multiple channels to avoid interference

Therefore, the best solution is:

✔ Replace the access point with a modern WPA2/WPA3-capable AP that supports improved channe selection.

Why the other options are incorrect

B . Disabling SSID broadcast – Does nothing for performance or security.

C . MAC filtering – Ineffective for performance and easily bypassed.

D . Updating firmware – Cannot upgrade WEP hardware to WPA2/3 if hardware limitations exist.

Final Answer: A

Question: 250

A customer is using port 110 for email. However, the customer wants to upgrade to a more secure connection that automatically synchronizes with the server. Which of the following should the customer use?

  1. IMAP
  2. HTTPS
  3. SMTP
  4. SFTP

Answer: A

Explanation:

Port 110 is used by POP3, a protocol designed for downloading emails from a remote server to a local client. POP3 does not inherently synchronize changes (such as read status, folder organization,

or deletions) between devices. The customer wants a more secure connection that automatically synchronizes with the server, which directly aligns with the functions of IMAP (Internet Message Access Protocol).

IMAP typically uses port 143 for unencrypted connections and 993 for secure, encrypted connections (IMAPS). It is designed for modern email usage—supporting multi-device access, live synchronization across clients, and server-stored mail. When a user reads, deletes, or moves an email using IMAP, these changes are reflected on the server and visible on every device logged into the same account. CompTIA A+ emphasizes that IMAP is preferred for users requiring constant synchronization, mobile access, and cloud-based email management, while POP3 is considered outdated. IMAP also supports secure, encrypted communication when paired with SSL/TLS.

HTTPS and SFTP do not handle email retrieval, and SMTP is a sending protocol, not a retrieval protocol. Therefore, IMAP is the only correct and CompTIA-aligned upgrade option.

Question: 251

A technician must install a printer at a corporate office for all employees to use. Which of the following is the best option?

  1. Print server
  2. Bluetooth printing
  3. Cloud printing
  4. Wi-Fi Direct

Answer: A

Explanation:

In a corporate office environment where multiple employees must share a single printer, the most efficient and manageable solution is a print server. A print server centralizes print management, queues print jobs, handles driver distribution, and provides access control. CompTIA A+ highlights print servers as the enterprise-standard method for managing shared printing resources because they ensure reliability, scalability, and better network performance.

Bluetooth printing and Wi-Fi Direct are short-range, peer-to-peer technologies meant for one-to-one or small-scale printing. They lack user authentication management, enterprise security controls, and cannot efficiently support dozens or hundreds of print requests simultaneously. Cloud printing requires internet reliance and external service routing, which introduces latency, potential downtime, and privacy concerns—often unsuitable for corporate networks, especially those with sensitive internal documents.

A print server allows users to connect to the printer through a standard network infrastructure (wired or wireless), and technicians can configure permissions, monitor print loads, and troubleshoot from a central location. It integrates seamlessly with enterprise directory services such as Active Directory, enabling controlled access and auditing. Because of these capabilities, the print server is the best professional-grade solution for corporate-wide printing needs.

Question: 252

Which of the following cable types must be used when running copper network cable through a suspended ceiling that is used for air ventilation?

  1. Plenum
  2. Multimode
  3. Coaxial
  4. Twisted pair

Answer: A

Explanation:

When installing copper network cable in spaces that serve as air-handling plenums, safety regulations require the use of plenum-rated cable. Suspended ceilings used for ventilation fall into this category. CompTIA A+ emphasizes that plenum spaces require cable with low-smoke, fire resistant insulation made from specialized materials that limit toxic emissions during combustion. Plenum-rated cabling (CMP) is designed to meet strict fire codes such as NFPA 70 (National Electrical Code). It prevents smoke-filled ventilation pathways, which could rapidly spread fire or toxic fumes throughout a building. Standard PVC-jacketed twisted pair cables are not permitted in plenum spaces because they produce thick, toxic smoke when burned.

Multimode cable refers to fiber optics, not copper cabling. Coaxial cable is used for broadband and certain RF applications but does not inherently meet plenum safety requirements unless specifically plenum-rated. Twisted pair describes the cable’s internal structure (Cat5e, Cat6, etc.), but it does not indicate the type of jacket. Only plenum-rated twisted pair is acceptable. Therefore, the correct answer is Plenum, as it ensures compliance with safety standards and building codes, prevents hazardous conditions, and aligns with CompTIA best practices for structured cabling installations.

Question: 253

Which of the following DNS records displays the destination of incoming email on a domain?

  1. CNAME
  2. TXT
  3. MX
  4. AAAA

Answer: C

Explanation:

DNS contains different record types that serve specific purposes. To determine where incoming email should be delivered for a particular domain, DNS uses an MX (Mail Exchange) record. CompTIA A+ identifies MX records as essential for routing mail from external senders to the appropriate mail server assigned to a domain. The MX record specifies: The mail server hostname responsible for receiving messages Priority values, which determine which server to try first The server destination for SMTP traffic When someone sends an email, the sending mail server queries DNS to find the MX record for the recipient’s domain. The SMTP server then relays the email to the server listed in that record. CNAME is used for aliasing hostnames, TXT is used for verification/security (SPF, DKIM), and AAAA maps a hostname to an IPv6 address. None of these direct email delivery. Only MX records are designed to instruct mail servers where to deliver incoming email.

Thus, the correct answer is MX.

Question: 254

A technician upgrades a CPU heat sink with a higher-performing model. While stress testing the  computer, the technician finds that the CPU temperatures have drastically increased. Which of the following is most likely causing the issue?

  1. Decreased CPU voltage
  2. Higher fan RPM
  3. Airflow interruption
  4. Missing thermal paste

Answer: D

Explanation:

Whenever a CPU heat sink is removed or replaced, thermal paste must be reapplied. Thermal paste fills microscopic gaps between the CPU heat spreader and the heat sink, ensuring efficient heat

transfer. Without it, there is a significant air gap, which acts as an insulator, causing CPU temperatures to rise dramatically even under light load. CompTIA A+ stresses thermal compound application as a key step in CPU cooling installation. The scenario indicates that temperatures increased drastically after upgrading to a better heat sink. A higher-performing heat sink should improve temperatures, not worsen them—unless a critical installation step was missed. Missing thermal paste is the most common cause of this symptom and easily explains the sudden overheating.

Decreased CPU voltage would lower temperatures, not raise them. Higher fan RPM increases cooling efficiency, not reduces it. Airflow interruption is possible but less likely in a simple heat sink upgrade scenario unless the technician installed the CPU cooler incorrectly; however, the most direct and common cause described by CompTIA is missing thermal paste.

Thus, D is the correct answer.

Question: 255

A technician needs to replace a laptop’s display assembly. Which of the following should the technician do to complete this task?

  1. Reattach the heat sinks.
  2. Reconnect the wireless antennas.
  3. Install a new CPU fan.
  4. Reset the BIOS to default settings.

Answer: B

Explanation:

Laptop display assemblies typically include not only the LCD panel but also the webcam, microphone, display cable, and critically, the Wi-Fi antennas. In most laptops, Wi-Fi antennas are built into the display bezel, because the elevated position allows for stronger wireless signal reception. When replacing the entire display assembly, the antennas must be carefully disconnected and reconnected during reinstallation. CompTIA A+ emphasizes proper cable routing and antenna reattachment as essential steps in laptop hardware disassembly and reassembly. Failing to reconnect these antennas results in weak or nonfunctional wireless connectivity, even though the display replacement itself may be successful. Heat sinks and CPU fans are located on the motherboard and are unrelated to display assembly replacement. Resetting BIOS settings is unnecessary unless troubleshooting firmware-related issues, not replacing hardware components like a display. Therefore, the only action that aligns with standard laptop design and CompTIA A+ procedures is ensuring that the wireless antennas are reconnected.

Thus, the correct answer is B.

Question: 256

Which of the following best describes a Type 2 hypervisor?

  1. It works as a firewall to control network traffic.
  2. It interacts directly with the underlying hardware.
  3. It runs on a host operating system.
  4. It brings higher CPU capabilities to virtual machines.

Answer: C

Explanation:

CompTIA A+ divides hypervisors into two main categories: Type 1 (bare-metal) and Type 2 (hosted).

A Type 2 hypervisor runs on top of an existing host operating system such as Windows, macOS, or Linux. It relies on the host OS for device drivers, hardware interaction, and resource management.

Examples include VMware Workstation, Oracle VirtualBox, and Parallels Desktop.

Type 2 hypervisors are ideal for lab environments, testing, learning, and small-scale virtualization because they do not require dedicated hardware or direct hardware control. The host OS loads first, and the hypervisor runs as an application, allowing users to create and manage virtual machines from within the OS environment.

Option B describes a Type 1 hypervisor, which installs directly on hardware without a host OS. Option A is unrelated, as firewalls are separate from virtualization technology. Option D is incorrect because hypervisors do not inherently increase CPU capabilities; they merely allocate existing hardware resources to virtual machines.

Thus, the correct and CompTIA-aligned description of a Type 2 hypervisor is that it runs on a host operating system.

Question: 257

An employee requires a workstation with three high-end graphics cards to render 3-D models. A technician must choose a power supply that meets the power requirements for the components and takes into consideration the mission-critical nature of the work. Which of the following meet the requirements? (Select two).

  1. 12V output
  2. Modularity
  3. 20-pin motherboard connector
  4. Redundancy
  5. 3.3V output
  6. 240 VAC input

Answer: B,D

Explanation:

A workstation running three high-end GPUs requires a power supply capable of both high wattage and stable, reliable output. In CompTIA A+ power supply fundamentals, modularity and redundancy are emphasized for high-performance and mission-critical systems. Modularity (B) allows the technician to connect only the necessary cables, reducing clutter,

improving airflow, and enabling proper cable routing to multiple GPUs. High-end graphics cards require multiple PCIe connectors, and modular PSUs provide the flexibility to attach the exact number of required GPU power cables. This is important for systems where space management and cooling efficiency directly affect performance and component longevity.

Redundancy (D) is critical for mission-critical workstations used for 3-D modeling and rendering. A redundant power supply ensures that if one PSU module fails, the system continues running without\ interruption. CompTIA A+ highlights redundancy as a key feature in professional environments where uptime is essential. These systems typically use dual hot-swappable power modules to guarantee continuous power delivery.

The other options do not meaningfully address the requirements. A 12V output is standard on all PSUs. A 20-pin connector is outdated; modern motherboards use 24-pin. The 3.3V rail is not relevant to GPU loads, and 240 VAC input only refers to wall power compatibility, not PSU capability.

Therefore, modularity and redundancy best meet the workstation’s needs.

Question: 258

A shared printer experiences an outage when users submit numerous print jobs at the same time. Which of the following will an engineer most likely do after verifying network connectivity?

  1. Reboot the server.
  2. Reinstall the printer drivers.
  3. Reset the printer to factory settings.
  4. Restart the spooler service.

Answer: D

Explanation:

In networked print environments, print jobs are processed through a system service called the print spooler. CompTIA A+ stresses that when shared printers fail due to job overload, the problem often lies with a hung or overloaded spooler service, especially when multiple jobs are sent simultaneously. The spooler queues, organizes, and processes print jobs; if it becomes overwhelmed or corrupted, printing stops completely even though the network and printer hardware remain functional.

After verifying network connectivity—as the question states— the next logical and CompTIA-aligned troubleshooting step is to restart the spooler service (D). Restarting it clears stuck or corrupt jobs, reinitializes print processing, and restores functionality without requiring a full server reboot or reinstallation of drivers.

Rebooting the server (A) may work but is unnecessarily disruptive and affects multiple services. Reinstalling printer drivers (B) is only warranted for driver corruption issues and is not the first step for spooler congestion. Resetting the printer to factory defaults (C) erases settings and is far too drastic for a simple print queue issue.

Therefore, the most efficient and technically correct action is restarting the print spooler service, restoring printing immediately while maintaining normal server operations.

Question: 259

Which of the following tools will a technician most likely use to identify an unlabeled network connection?

  1. Network tap
  2. Loopback plug
  3. Cable tester
  4. Toner probe

Answer: D

Explanation:

To locate or identify an unlabeled network connection, the tool most suited for tracing cables through walls, ceilings, or patch panels is a toner probe (also called a tone generator and probe kit). CompTIA A+ describes this tool as essential for cable identification: the technician attaches the tone generator to one end of the network cable, and the probe detects the signal on the other end, even across long distances or through bundled wiring. This makes the toner probe ideal for environments where cables are unlabeled, routed through structured cabling systems, or mixed with other wires. It allows the technician to listen for the distinctive tone, confirming the cable’s termination point.

A cable tester (C) verifies wiring integrity and pinouts but cannot trace a cable through physical pathways. It is used after identification, not during it. A loopback plug (B) is used for port testing and NIC diagnostics, not cable tracing. A network tap (A) is used for traffic monitoring, security analysis, and packet capture; it does not help locate cables.

Therefore, the toner probe is the correct tool for identifying and tracing an unlabeled network cable, aligning with CompTIA’s recommended cable management and troubleshooting procedures.

Question: 260

A computer training institute needs to implement multiple VLANs that must:

  • Connect to each other with minimum hardware
  • Communicate traffic at wire speed

Which of the following is the most suitable?

  1. Web application firewall
  2. DDoS appliance
  3. Layer 3 switch
  4. Router

Answer: C

Explanation:

A Layer 3 switch is the optimal solution when multiple VLANs must intercommunicate while maintaining high performance and minimal hardware complexity. CompTIA A+ explains that Layer 3 switches combine the capabilities of switching (Layer 2) and routing (Layer 3), allowing VLAN traffic to be routed internally at wire speed, without the latency typically associated with traditional routers.

Layer 3 switches use hardware-based routing, meaning they forward inter-VLAN traffic using ASICs (Application-Specific Integrated Circuits). This allows them to achieve extremely fast throughput, ideal for environments like computer training institutes where multiple VLANs may be used for student labs, instructor networks, and administrative traffic.

A router (D) can route between VLANs but introduces more latency due to software-based routing and typically requires additional equipment. A Web application firewall (A) and DDoS appliance (B) are security devices unrelated to internal VLAN communication.

Because the institute requires minimal hardware and high-speed inter-VLAN communication, the Layer 3 switch is the only CompTIA-supported device that meets both requirements simultaneously.

Question: 261

A technician has built a new computer. On the initial startup, the computer passes POST but will not turn on the operating system. Which of the following components has failed?

  1. Audio card
  2. CPU
  3. Power supply
  4. HDD

Answer: D

Explanation:

When a newly built computer successfully passes POST, it indicates that the CPU, RAM, motherboard, video output, and other essential components are functioning at a hardware level. POST will typically fail or display error codes if there are problems with the CPU, RAM, GPU, or power delivery. Therefore, the fact that POST succeeds allows us to eliminate those components from suspicion.

The issue arises after POST, when the system attempts to load an operating system. For the OS to load, the BIOS/UEFI must detect a working storage device—such as an HDD, SSD, or NVMe drive— containing a bootable OS. If the computer cannot locate or read the drive, the system will halt at a boot error, such as “No boot device found,” “Insert boot media,” or similar messages. This is consistent with a failed or improperly connected HDD.

A failed HDD prevents access to boot files, even though the rest of the system hardware functions normally. Audio cards are irrelevant to booting. A failed CPU would cause a POST failure, not an OS loading issue. A faulty power supply would affect system stability during POST, not specifically OS boot failure unless the system is not powering at all. Thus, the failed component is the HDD.

Question: 262

A user’s smartphone frequently disconnects from Wi-Fi networks, particularly in crowded areas like airports and coffee shops. The user also notices that their device shows a lower Wi-Fi signal strength compared to other devices in the same location. Which of the following is likely contributing to the smartphone’s Wi-Fi connectivity issues?

  1. The smartphone’s antenna may be malfunctioning.
  2. The smartphone may have an outdated Wi-Fi standard.
  3. The smartphone may be experiencing interference from nearby devices.
  4. The smartphone’s power settings may be affecting performance.

Answer: A

Explanation:

The symptoms clearly point to a hardware-level signal degradation issue, which is most commonly caused by a malfunctioning or damaged Wi-Fi antenna in the smartphone. CompTIA A+ mobile device troubleshooting emphasizes comparing the affected device’s signal strength with other nearby devices. In this case, other devices in the same location have stronger Wi-Fi signals, meaning the network itself is functioning normally. The consistent low signal across multiple networks strongly suggests antenna failure.

Modern smartphones use internal antenna assemblies located along the frame or behind the back cover. If the antenna becomes loose, damaged, or obstructed, the device may show weak or unstable Wi-Fi connectivity, especially in crowded environments where strong, stable reception is required to maintain a connection.

Option B (outdated Wi-Fi standard) would limit speed but not cause significant signal weakness compared to surrounding devices. Option C (interference) affects all devices in an area similarly—not just one device. Option D (power settings) may reduce background activity or scanning frequency, but it does not cause consistently low signal strength. Therefore, the most likely cause is a malfunctioning Wi-Fi antenna inside the smartphone.

Question: 263

A drive for a RAID 1 array fails. Users are concerned that information could be lost. Which of the following is the best way to manage the situation?

  1. Repairing and reinstalling the defective disk to recover any files
  2. Discarding the defective disk without further action
  3. Replacing the defective disk and syncing the new one so that all files are retained
  4. Finding the latest backup of the legacy server and restoring it to transfer the files

Answer: C

Explanation:

A RAID 1 array uses disk mirroring, meaning all data is written identically to two drives. When one drive fails, the other contains a complete, current copy of the data. CompTIA A+ emphasizes that RAID 1 is designed for fault tolerance, allowing continued operation even after a disk failure. The correct action is to replace the defective drive and allow the RAID controller to rebuild (sync) the mirror onto the new disk. This restores redundancy and ensures ongoing data protection. The system can typically continue running during the rebuild process.

Option A is incorrect because attempting to repair a failed drive is unreliable and unnecessary—RAID 1 already provides a healthy copy. Option B ignores the importance of restoring redundancy, leaving the system vulnerable to data loss if the remaining drive fails. Option D (restore from backup) is unnecessary because RAID 1 already preserves the data.

Therefore, the best solution is to install a new drive and resynchronize the array, preserving all data with minimal disruption.

Question: 264

Which of the following connection methods allows a mobile device to share an LTE connection with other nearby devices?

  1. Bluetooth
  2. NFC
  3. Cellular
  4. Hotspot

Answer: D

Explanation:

Mobile devices can share their LTE or cellular data connection using a feature called tethering, more commonly known as hotspot mode. According to CompTIA A+ objectives on mobile networking technologies, a hotspot allows a smartphone or tablet to become a mini wireless router, broadcasting a Wi-Fi signal that nearby devices can connect to. The LTE (or 5G) connection is then shared over Wi-Fi, enabling laptops, tablets, or other phones to access the internet through the mobile device.

Bluetooth is capable of tethering but provides much lower bandwidth and slower speeds—not ideal for sharing LTE widely. NFC is used for close-range data exchange or payment transactions and cannot share internet service. “Cellular” refers to the phone’s own mobile network connection, not the mechanism for sharing it with others.

Hotspot functionality is specifically built into modern mobile OSs and supports WPA2/3 encryption, password protection, and device whitelisting. This makes it the most common and efficient method to share LTE connectivity with multiple nearby devices.

Thus, Hotspot (D) is the correct answer.

Question: 265

Which of the following should a technician create to assign a permanent IP address to a PC using DHCP?

  1. Reservation
  2. Lease
  3. Exclusion
  4. Scope option

Answer: A

Explanation:

DHCP normally assigns IP addresses dynamically using timed leases, meaning the address may change after expiration. However, many devices—such as servers, printers, or specialized workstations—require permanent, predictable IP addresses. CompTIA A+ identifies a DHCP reservation as the correct method for assigning a consistent IP while still using DHCP.

A reservation binds a device’s MAC address to a specific IP address in the DHCP server. Each time the device requests an address, the DHCP server recognizes the MAC address and issues the same IP.

This provides reliability while still allowing centralized management of network addressing.

A lease is temporary and not permanent. An exclusion simply removes certain IP addresses from the assignable pool—it does not assign any device a fixed address. A scope option configures additional network parameters such as DNS, gateway, or WINS settings but does not assign static IPs.

Therefore, a reservation is the correct method to permanently assign an IP address using DHCP without requiring static configuration on the device itself.

Question: 266

A small business is growing and wants to scale its computing capacity. The business wants to continue using on-site equipment until it is EOL. The solution must be able to share data with the local data center. Which of the following models should a technician suggest?

  1. Public
  2. Community
  3. Hybrid
  4. Private
  5. SaaS

Answer: C

Explanation:

The requirements describe an environment transitioning gradually from on-site hardware to scalable cloud services. The business wishes to continue using its existing local equipment until end of life, while also expanding computing resources beyond what the on-premises infrastructure can handle.

Additionally, the cloud environment must be able to share data with the internal data center. This aligns perfectly with a hybrid cloud model, which CompTIA A+ defines as a combination of private (on-premises) and public cloud resources operating together. Hybrid cloud enables secure data sharing, workload distribution, and scaling without eliminating existing hardware investments. It allows organizations to offload high-demand processes to the cloud while maintaining sensitive data or critical services on-site.

A private cloud (D) would not allow scaling into a public provider efficiently. A public cloud (A) replaces internal resources instead of complementing them. A community cloud (B) is shared among organizations with similar compliance requirements—not applicable here. SaaS (E) refers to hosted applications, not infrastructure scalability.

Thus, a Hybrid cloud model fulfills all stated requirements: seamless data sharing, scalable computing, and continued use of on-site equipment.

Question: 267

Which of the following describes an environment in which virtual machines are hosted on premises and in a cloud?

  1. Hybrid
  2. Public
  3. Private
  4. SaaS

Answer: A

Explanation:

A hybrid environment combines both on-premises infrastructure and cloud-based resources, allowing virtual machines to operate seamlessly between the two. CompTIA A+ describes hybrid cloud as a deployment model where organizations maintain their own private servers or virtualization hosts while also leveraging public cloud platforms such as AWS, Azure, or Google Cloud. This model supports flexibility, scalability, and gradual migration, making it ideal for businesses not ready to fully abandon local infrastructure. In this model, workloads can move between the local environment and the cloud depending on

performance requirements, cost considerations, or redundancy needs. Additionally, hybrid clouds allow resource sharing, data synchronization, and load balancing across both environments. A public cloud hosts resources entirely in the provider’s data center, offering no on-premises integration. A private cloud exists solely within the organization’s infrastructure with no external shared resources. SaaS delivers applications, not infrastructure, meaning it cannot host or manage virtual machines.

Therefore, an environment where VMs exist both on-site and in the cloud is best described as a Hybrid cloud.

Question: 268

A user with a home office wants to add additional devices to the existing internet service while maintaining minimal cost and administration. Which of the following provides the needed functionality?

  1. DSL modem
  2. Firewall
  3. Unmanaged switch
  4. Cable modem

Answer: C

Explanation:

To add additional wired network devices in a simple and cost-effective manner, the best solution is an unmanaged switch. CompTIA A+ explains that unmanaged switches require no configuration, provide instant port expansion, and operate using plug-and-play functionality. This makes them ideal for home offices where the user wants more Ethernet ports without dealing with administrative overhead or complex setup.

An unmanaged switch automatically forwards traffic using MAC addresses, expanding the network without altering IP configuration or security settings. It is inexpensive compared to other networking equipment and requires no firmware updates, VLAN management, or routing knowledge. A DSL modem or cable modem provides internet service but does not increase the number of available network ports beyond the single LAN port commonly offered. A firewall controls traffic but does not expand physical connectivity. Therefore, neither modem nor firewall options meet the requirement of adding more wired devices.

Thus, the unmanaged switch is the simplest, cheapest, and most practical choice for expanding connectivity in a home office environment.

Question: 269

A technician is manually configuring network settings on a user’s computer to route network traffic to a newly deployed firewall. Which of the following should the technician change?

  1. VPN
  2. Gateway
  3. Subnet mask
  4. VLAN

Answer: B

Explanation:

The default gateway is the network device responsible for routing traffic from a local computer to destinations outside its subnet. When a new firewall is deployed and intended to manage outbound traffic, client devices must be configured to send packets to this firewall. CompTIA A+ identifies the gateway setting as the key parameter that determines where a workstation sends its external-bound traffic.

By updating the gateway address to point to the new firewall’s internal interface, all internet-bound and off-subnet traffic will now pass through the firewall for filtering, inspection, and routing. This ensures correct traffic flow and enforces security policies.

Changing the VPN settings (A) does not affect local traffic routing unless a VPN tunnel is active. Subnet mask adjustments (C) determine the network size but do not control routing. VLAN settings (D) require switch configuration, not workstation changes, and do not dictate default routing behavior.

Thus, modifying the gateway is the correct and necessary step to route all traffic through the newly implemented firewall.

Question: 270

Which of the following devices forwards traffic based on MAC addresses?

  1. Switch
  2. Router
  3. Firewall
  4. Gateway

Answer: A

Explanation:

A network switch operates at Layer 2 (Data Link Layer) of the OSI model and forwards traffic using MAC addresses. CompTIA A+ teaches that switches maintain a MAC address table, learning which devices reside on each port. When a frame arrives, the switch checks the destination MAC address and forwards it only to the appropriate port, reducing unnecessary traffic and improving performance.

Routers, on the other hand, operate at Layer 3 and forward traffic based on IP addresses, not MAC addresses. Firewalls inspect traffic for security policies and operate across multiple OSI layers but do not perform MAC-based forwarding. A gateway is a broad term that generally refers to a device connecting different networks or protocols, typically involving routing, not MAC-based switching.

Thus, the device specifically responsible for forwarding frames based on MAC address lookup is the switch.

Question: 271

Which of the following will most likely be installed in an NVMe port on the motherboard of a desktop PC?

  1. SATA drive
  2. Solid-state drive
  3. SAS drive
  4. Optical drive

Answer: B

Explanation:

An NVMe port, typically implemented through an M.2 slot, is designed specifically for NVMe-based solid-state drives (SSDs). CompTIA A+ explains that NVMe (Non-Volatile Memory Express) is a high performance storage protocol that communicates directly with the CPU over PCIe lanes, offering significantly faster read/write speeds compared to SATA-based SSDs.

SATA drives (A) connect via SATA ports, not NVMe/M.2 PCIe slots. SAS drives (C) are enterprise-level storage devices requiring SAS controllers and are incompatible with consumer desktop motherboards. Optical drives (D) use SATA or USB interfaces and cannot be installed in an NVMe slot.

Thus, the only device designed for and compatible with an NVMe slot is a solid-state drive (SSD) using the NVMe protocol.

Question: 272

Which of the following wireless frequency ranges involves the use of channels 1, 6, and 11?

  1. 2.4GHz
  2. 5GHz
  3. 6GHz
  4. 60GHz

Answer: A

Explanation:

In Wi-Fi, the 2.4GHz band contains 14 total channels (depending on region), but only channels 1, 6, and 11 are considered non-overlapping in most countries. CompTIA A+ highlights the importance of selecting these channels to minimize interference, especially in environments with multiple wireless networks or access points.

The 2.4GHz band is narrower than 5GHz, causing adjacent channels to overlap significantly. Using channels 1, 6, and 11 prevents overlap and reduces signal interference, improving performance and stability.

5GHz (B) has many non-overlapping channels and does not use the 1/6/11 scheme. The 6GHz band (C) is part of Wi-Fi 6E and uses entirely different channel planning. The 60GHz band (D) supports short-range high-speed connections like WiGig, not traditional Wi-Fi channels. Therefore, the 2.4GHz band is the correct answer.

Question: 273

Which of the following types of RAM is most likely used in data centers and in high-performance machines?

  1. ECC
  2. Single-channel
  3. Unbuffered
  4. RDIMM

Answer: A

Explanation:

Data centers and high-performance servers prioritize stability and fault tolerance. CompTIA A+ identifies ECC (Error-Correcting Code) RAM as the standard memory used in such environments. ECC RAM automatically detects and corrects single-bit memory errors, preventing system crashes, data corruption, and downtime—critical requirements for servers running mission-critical workloads. ECC memory is commonly paired with registered/buffered modules (RDIMM) for additional stability, but ECC itself is the defining feature required in data center environments. Non-ECC, unbuffered memory is used in consumer desktops where minor memory errors pose minimal risk.

Single-channel memory (B) is simply a configuration and does not imply reliability. Unbuffered RAM (C) is not used in enterprise-grade systems because it lacks error correction and electrical stabilization. RDIMM (D) includes buffering but may come with or without ECC; however, ECC is the key requirement highlighted by the question. Therefore, the correct answer is ECC RAM.

Question: 274

Some users are unable to access their workstations. An administrator runs ipconfig on one of the workstations and sees the following:

The administrator runs the following command and receives this output: Which of the following is the source of issue?

  1. Web server
  2. Router
  3. DNS
  4. DHCP

Answer: B

Explanation:

The workstation’s IP configuration (192.168.1.27/24 with gateway 192.168.1.1) shows that it has a correct IP address, correct subnet mask, and expected default gateway for a typical small office network. Because the IP is in the correct private range and not an APIPA address (169.254.x.x), this also confirms that DHCP is functioning properly. Therefore, option D (DHCP) cannot be the cause. The user then pings the default gateway at 192.168.1.1, which should be the router—the device providing routing between local devices and outside networks. The repeated “Request timed out” responses indicate the workstation cannot reach the router at all. This type of failure points directly to a router outage, a powered-off router, a failed router interface, or a physical disconnection of the router from the switch.

If DNS (C) were the issue, the user would still be able to ping the IP address of the gateway because DNS is not required for IP-to-IP connectivity. A web server (A) has no relation to local gateway communication and does not affect workstation access.

Since the workstation has a valid IP but cannot reach its default gateway, the failure point is the outer.

Question: 275

Which of the following should a technician check when the display of a computer Is flickering?

  1. LCD type
  2. Refresh rate
  3. Screen resolution
  4. Pixel density

Answer: B

Explanation:

Display flickering is most commonly caused by an incorrect or unstable refresh rate setting. The refresh rate is the number of times per second (measured in Hz) that a monitor redraws the image.

CompTIA A+ teaches that LCD, LED, and especially older CRT displays can exhibit flickering if the refresh rate is set too low or to a value unsupported by the monitor.

For modern displays, typical refresh rates are 60 Hz, 75 Hz, 120 Hz, 144 Hz, and higher. If the refresh rate is mismatched—such as manually set above the monitor’s rated capability—the screen may flicker, blank intermittently, or show instability. Similarly, if the refresh rate is set too low, the user may perceive visible flicker, eye strain, or shimmering on the display. Checking and adjusting the refresh rate through the operating system’s display settings (or GPU control panel) is the first and most direct troubleshooting step for flickering issues.

The LCD type (A) has no bearing on flickering once installed. Screen resolution (C) affects clarity and scaling but does not cause flicker by itself. Pixel density (D) is a hardware characteristic and cannot cause flickering. Thus, the correct component to check when diagnosing display flicker is the refresh rate.

Question: 276

Marketing department users report network performance degradation in the morning and early afternoon, but sales and customer service department users do not report any issues. All structured cabling Is Cat 5e. All departments are connected to a core switch. The running network configuration shows the following:

Which of the following is the most likely cause of the performance issues?

  1. The marketing department subnet has an error.
  2. The structured Cat 5e cabling is outdated.
  3. The interfaces are configured with Incorrect IP addresses.
  4. The marketing department Interface is running at 10/100.

Answer: D

Explanation:

From the configuration, the Sales and Customer Service ports are hard-set to full duplex, 1000 Mbps, while the Marketing interface (GigabitEthernet0/3) is set to duplex auto and speed auto. CompTIA A+ explains that mismatched or lower-negotiated speeds and duplex settings can cause noticeable network slowdowns, collisions, and retransmissions—especially at busy times of the day when utilization is high.

Because all cabling is Cat 5e, it fully supports Gigabit Ethernet, so the cabling is not the limiting factor. The IP addresses are all in the same subnet (192.168.1.0/24) and formatted correctly, so there is no subnet or addressing problem. That rules out options A and C.

With speed auto, the Marketing port may be negotiating only 10/100 Mbps, or even a duplex mismatch (e.g., half duplex vs full). This would severely limit throughput compared to the gigabit links used by the other departments. In peak periods, that slower link would become congested first, which matches the users’ reports of performance degradation only in Marketing. Therefore, the most likely cause is that the Marketing interface is operating at 10/100 instead of 1000 Mbps, making option D correct.

Question: 277

Which of the following is the most likely cause?

  1. The subnet mask Is Incorrect.
  2. NetBIOS is enabled.
  3. DHCP is enabled.
  4. DNS servers are manually set.

Answer: D

Explanation:

The key detail in the ipconfig output is that the system is receiving an IP address, subnet mask, default gateway, and DHCP server information via DHCP, but the DNS servers shown are 8.8.8.8 and 8.8.4.4, which are Google’s public DNS servers. In most corporate networks, DNS is provided internally by the DHCP server—usually the same device assigning the IP address. When DNS values are different from DHCP-provided defaults, it indicates manual DNS configuration. CompTIA A+ emphasizes that mismatched DNS settings can cause browsing issues, name-resolution delays, or an inability to access internal resources. DNS is critical because it translates domain names into IP addresses; if manually configured, the device bypasses the organization’s DNS server and may not resolve internal hostnames.

The subnet mask is correct for a Class B private network subdivided using /24 (255.255.255.0).

NetBIOS being enabled is common and not a cause of connectivity issues here. DHCP being enabled is normal and functioning correctly, as shown by the proper IP lease obtained. Thus, the anomalous and most likely problematic configuration is manually configured DNS, making

Option D correct.

Question: 278

A user receives an error when installing a new email app on their phone. Technician verifies OS is updated and app is supported. What should the technician check next?

  1. Storage
  2. Battery health
  3. SIM card
  4. Processor

Answer: A

Explanation:

When an application fails to install on a smartphone despite being supported by the OS and device type, CompTIA A+ stresses that the most common cause is insufficient storage. Mobile devices require not only space for the app itself but also additional temporary space for the installation process, cached data, and updates. If internal storage is nearly full, the app store will display installation errors—even if the OS and hardware meet requirements. Battery health has no impact on app installation. A SIM card is unrelated to installing local applications—it only affects cellular connectivity. Processor architecture issues would have been caught during compatibility checking, but the technician already verified the device supports the application.

Therefore, after confirming compatibility, the next logical step is to check available storage space. If storage is low, deleting unused apps, clearing cached data, or transferring media to cloud storage or an SD card typically resolves the installation issue.

Thus, Option A: Storage is the correct answer.

Question: 279

Which internet connection type will most likely experience interference from rain?

  1. Fiber
  2. Cable
  3. Satellite
  4. DSL

Answer: C

Explanation:

CompTIA A+ identifies satellite internet as the connection type most susceptible to weather-related interference, particularly rain, snow, and heavy cloud cover. This phenomenon is known as rain fade.

Satellite connections rely on high-frequency microwave signals transmitted between a dish antenna at the customer site and an orbiting satellite. Moisture in the atmosphere absorbs and scatters these signals, causing latency spikes, reduced bandwidth, or complete signal loss during storms.

Fiber (A) uses light signals through glass fiber and is immune to electromagnetic and weather interference. Cable internet (B) uses shielded coaxial lines buried or run overhead, but rain does not affect signal quality in normal conditions. DSL (D) uses telephone lines, which may degrade with physical line issues, but not directly due to rain in the same way satellite is affected. Thus, satellite internet is most likely to experience signal degradation during rain conditions.

Question: 280

While using a laptop and Bluetooth headset for conference calls, a user notices intermittent sound issues. The user frequently walks between office rooms during calls, leaving the laptop in place. The office network uses fiber internet and has two connected APs. What is the MOST likely cause?

  1. The number of available APs is inadequate.
  2. The user is moving in and out of range.
  3. The APs are not in mesh mode.
  4. The internet connection is too slow.

Answer: B

Explanation:

Bluetooth audio issues are typically related to distance and signal strength, not internet connectivity or Wi-Fi access points. Bluetooth devices—especially headsets—generally have a limited effective range of around 10 meters (33 feet) for Class 2 Bluetooth, which is common in consumer laptops and headsets. When the user leaves the room and walks into adjacent offices, they are likely moving beyond the optimal Bluetooth range or passing through walls that weaken the signal.

CompTIA A+ highlights that Bluetooth uses low-power radio frequencies easily disrupted by physical obstructions, distance, and interference. Since the laptop remains stationary and the user moves, the headset becomes progressively further from the laptop, causing intermittent audio dropouts, stuttering, or loss of connection.

The number of APs (A) is irrelevant because the headset is not using Wi-Fi. Mesh mode (C) applies only to wireless AP-to-AP communication. The internet connection (D) is high-quality fiber and conference calls work fine when stationary, so the issue is not bandwidth or WAN throughput.

Thus, the most likely cause is that the user is moving in and out of Bluetooth range.

Question: 281

A company wants to enable access to corporate email on smartphones. Employees must install software that separates corporate and personal data. Which should the company implement?

  1. Encryption
  2. Network access control
  3. Mobile device management
  4. Endpoint protection

Answer: C

Explanation:

The requirement to separate corporate and personal data on employee smartphones is a core function of Mobile Device Management (MDM). CompTIA A+ describes MDM as an enterprise toolset used to enforce security policies, manage applications, configure email profiles, and separate work-related data from personal user data. This separation is typically achieved through features such as containerization, where corporate data is stored in a protected, encrypted workspace that is isolated from the personal side of the device.

This ensures security, prevents data leakage, and enables IT administrators to remotely wipe corporate data without affecting the user’s personal information. MDM solutions are widely used in BYOD (Bring Your Own Device) environments and corporate-issued devices.

Encryption (A) protects data but does not create separation. Network access control (B) restricts network access but does not manage mobile apps or data separation. Endpoint protection (D) refers to antivirus/antimalware, not data partitioning.

Thus, Mobile Device Management (MDM) is the correct solution.

Question: 282

A technician installs an external camera on a user’s laptop. When loading meeting software, the video preview shows a blank screen. What should the technician do next?

  1. Select the correct camera source.
  2. Replace the camera.
  3. Update the camera software.
  4. Check the camera cable.

Answer: A

Explanation:

Most meeting or conferencing applications default to the built-in laptop camera unless manually changed. When an external camera is connected, the software may continue to use the default device, resulting in a blank preview, especially if the internal camera is disabled, covered, or malfunctioning. CompTIA A+ stresses verifying correct device selection when peripherals are installed.

Selecting the correct camera source is a quick, non-invasive test that resolves the issue in the majority of cases. The technician should open the application’s video settings and choose the external webcam from the camera dropdown menu.

Replacing the camera (B) is premature without confirming configuration. Updating software (C) is beneficial but will not resolve a simple input-selection error. Checking the cable (D) is a valid step if the preview still fails after selecting the device.

Thus, the correct next step is to select the proper camera source.

Question: 283

Which cloud characteristic allows local folders to contain updates made by users or other devices?

  1. Network share
  2. Synchronization
  3. Availability
  4. Metered utilization

Answer: B

Explanation:

Cloud storage platforms—such as OneDrive, Google Drive, and Dropbox—use synchronization to ensure that files updated on one device automatically update on all connected devices. CompTIA A+ defines synchronization as a key cloud characteristic that keeps local folders and cloud-stored versions consistent, enabling seamless multi-device collaboration.

Synchronization allows users to:

Modify files offline and have them sync once online

Access identical data on laptops, desktops, and mobile devices

Ensure real-time updates across multiple users or clients

Maintain version consistency and conflict resolution

A network share (A) is local to an organization and does not automatically sync across devices.

Availability (C) relates to uptime and reliability, not file updates. Metered utilization (D) refers to cloud billing models where usage is tracked, not data syncing.

Thus, synchronization is the capability that ensures local folders update dynamically whenever changes occur.

Question: 284

Which of the following offers access to business productivity applications for a recurring fee?

  1. SaaS
  2. DaaS
  3. PaaS
  4. IaaS

Answer: A

Explanation:

Software as a Service (SaaS) provides users access to fully managed applications hosted in the cloud. CompTIA A+ explains that SaaS is subscription-based and typically billed monthly or annually, which aligns perfectly with the phrase “recurring fee.” Business productivity applications—such as Microsoft 365, Google Workspace, Zoom, Slack, and Salesforce—are classic examples of SaaS offerings.

SaaS applications run entirely in the provider’s cloud environment, eliminating the need for installation, maintenance, or management by the customer. This makes SaaS ideal for businesses that need reliable, scalable tools without maintaining their own infrastructure. DaaS (Desktop as a Service) provides virtual desktops. PaaS (Platform as a Service) offers a development framework for building applications. IaaS (Infrastructure as a Service) provides virtual servers, storage, and networking—not end-user productivity apps.

Thus, SaaS is the correct and only model that matches the description of subscription-based access to productivity applications.

Question: 285

A software developer wants to test a new application in an environment that limits access to the OS.

Which of the following should the developer implement?

  1. Container
  2. Type 2 hypervisor
  3. VDI
  4. Quarantined PC

Answer: A

Explanation:

A container is the ideal environment for software testing when access to the underlying operating system must be restricted. CompTIA A+ explains that containers isolate applications from the host OS by packaging the app and all its dependencies into a controlled environment. This prevents the application from modifying or interfering with the host system and ensures predictable, consistent behavior across environments.

Unlike virtual machines, containers do not include a full OS installation; they share the host OS kernel but run in isolated user-space environments. This makes them lightweight, fast to deploy, and secure—perfect for developers testing new or potentially unstable applications.

A Type 2 hypervisor hosts full virtual machines but does not inherently limit OS access. A VDI provides remote desktops but is not designed for controlled application testing. A quarantined PC is used for isolating infected or suspicious systems, not structured development testing. Thus, containers provide the controlled, restricted environment required.

Question: 286

A user cannot access the internet from a corporate laptop. All other employees can. The technician reviews the laptop’s configuration: IP Address: 169.254.2.162

Which explains the reason the user cannot access the internet?

  1. The subnet mask is misconfigured.
  2. The NIC is not using the latest driver.
  3. Network settings are only configured to IPv6.
  4. The DHCP server is unable to assign an address.

Answer: D

Explanation:

An IP address beginning with 169.254.x.x is an APIPA address (Automatic Private IP Addressing). CompTIA A+ explains that APIPA is assigned automatically by Windows when the NIC cannot reach a DHCP server. This indicates the laptop requested an IP lease but never received one.

APIPA addresses allow only local subnet communication and cannot access the internet, because no default gateway, DNS, or valid subnet configuration is provided. Since all other employees can access the internet, the DHCP server is functioning generally, but it is not delivering an address to this specific laptop—possibly due to cable issues, Wi-Fi authentication failure, DHCP scope exhaustion, or NIC misconfiguration. A subnet mask misconfiguration (A) would still show a normal IP, not APIPA. IPv6-only configuration (C) would not produce a 169.254 address. An outdated NIC driver (B) could cause network instability but does not directly generate APIPA.

Thus, the root cause is that the DHCP server did not assign an IP address.

Question: 287

Which cloud model provides hardware, storage, networking, and virtualization but requires customers to manage the OS and applications?

  1. SaaS
  2. PaaS
  3. IaaS
  4. XaaS

Answer: C

Explanation:

Infrastructure as a Service (IaaS) provides the foundational computing components: virtualized hardware, storage, networking, and hypervisor resources. CompTIA A+ explains that customers using IaaS are responsible for installing and maintaining:

The operating system

Applications

Patches, updates, and configurations

This model gives organizations maximum flexibility because they can build custom server environments without purchasing physical hardware.

In contrast: SaaS (A) provides fully managed applications—users do not manage OS or software.

PaaS (B) provides a development platform and tools but does not allow OS management.

XaaS (D) is a broad term meaning “anything as a service,” not a specific model.

Thus, IaaS is the only model where OS-level control remains with the customer.

Question: 288

A human resources manager printed a sensitive termination document and forgot to retrieve it from the printer. Which of the following prevents this situation?

  1. Badging
  2. Duplex
  3. Printer share
  4. Wireless encryption

Answer: A

Explanation:

Secure badging—often used with “pull printing” or “secure print release”—requires users to authenticate at the printer before documents are printed. CompTIA A+ highlights this feature as critical for protecting sensitive data in corporate environments. With badge-based printing, jobs stay in a secure print queue until the authorized user physically scans their badge.

This prevents confidential documents, like HR termination notices, from sitting unattended in the output tray. It also reduces print waste and ensures accountability for printed materials. Duplex printing (B) simply prints double-sided pages. Printer sharing (C) allows multiple users to use a printer but does not provide security. Wireless encryption (D) protects network traffic but does not address abandoned print jobs.

Therefore, badging / secure print release is the correct protective measure.

Question: 289

A user ran out of USB ports on their laptop but wants to plug in more devices. What technology is best?

  1. Near-field communication
  2. Bluetooth
  3. USB receiver
  4. Port replicator

Answer: D

Explanation:

A port replicator expands the number and types of ports available to a laptop, including additional USB ports, video outputs, Ethernet, and more. CompTIA A+ identifies port replicators as solutions for users needing greater connectivity, especially when docking stations are unnecessary or unavailable.

Port replicators connect through a single USB or proprietary connector and provide multiple expansion ports instantly. This resolves the issue of limited USB availability without requiring hardware replacement.

NFC (A) is used for short-range communication, not peripheral connectivity. Bluetooth (B) only supports wireless peripherals such as mice and headphones, not wired USB devices. A USB receiver (C) adds wireless capability for one specific device, not general expansion. Thus, the correct solution is a port replicator.

Question: 290

Which connector is used to uplink a new ISP cable modem to its wall jack?

  1. F-type
  2. LC
  3. RJ45
  4. Lightning

Answer: A

Explanation:

Cable modems supplied by ISPs connect to the coaxial wall outlet using an F-type connector.

CompTIA A+ specifies that F-type connectors are threaded coaxial connectors used in broadband cable internet, cable TV, and some satellite systems. They attach to RG-6 or RG-59 coaxial cable and provide a secure, shielded connection to the cable provider’s infrastructure.

The cable modem requires this coaxial uplink to receive downstream and upstream signals from the ISP before converting them into Ethernet on the LAN side.

LC (B) is for fiber optic connectors, not coaxial. RJ45 (C) is an Ethernet connector and is used on the LAN side of the modem—not on the wall uplink. Lightning (D) is an Apple connector and irrelevant to networking hardware.

Thus, the correct connector for the ISP cable modem uplink is F-type.

Question: 291

A user reports intermittent latency when accessing an internal website hosted at a remote office.

Which of the following should a technician do? (Select two)

  1. Run ipconfig /all
  2. Run ping -t
  3. Run nslookup
  4. Examine the physical switchport
  5. Configure QoS
  6. Run tracert
  7. Call ISP

Answer: B,F

Explanation:

When troubleshooting intermittent latency to a remote internal resource, CompTIA A+ recommends using tools that help identify where latency occurs and whether it is consistent or fluctuating over time. The best tools for this scenario are ping -t and tracert.

Ping -t (B) sends continuous ICMP echo requests, allowing the technician to observe packet loss, fluctuating response times, or timeouts. This helps identify intermittent connectivity problems that occur at specific times, such as bandwidth congestion, routing instability, or wireless interference.

Tracert (F) maps each hop between the local workstation and the remote office. If latency spikes occur only after a particular hop—such as a VPN tunnel, MPLS gateway, or inter-office router—that device becomes the suspected bottleneck. This makes tracert essential for isolating WAN-related slowdowns. Ipconfig /all (A) only provides local configuration and does not diagnose latency. Ns lookup (C) is for DNS testing—not latency to a specific internal host. Examining switchports (D) helps with local issues but not remote latency. QoS (E) is a solution, not a troubleshooting step. Calling ISP (G) may be premature unless testing confirms ISP-related issues. Thus, ping -t and tracert are the correct diagnostic tools.

Question: 292

A customer has bare-metal servers running Windows, Linux, and Unix. They want consolidation while maintaining isolation and compatibility. What should the technician recommend?

  1. IaaS
  2. Containers
  3. Type 2 hypervisor
  4. VDI

Answer: A

Explanation:

The customer wants to consolidate multiple physical servers running different operating systems, including Windows, Linux, and Unix, while maintaining strong isolation between systems. CompTIA A+ identifies Infrastructure as a Service (IaaS) as the best model for hosting fully isolated virtual machines in a cloud environment, allowing each OS to run independently on its own virtual hardware. IaaS provides virtualized computing resources—CPU, RAM, networking, and storage—while allowing the customer full control over the OS and application layer. This means Windows, Linux, and Unix VMs can coexist without compatibility concerns because each VM runs its native OS without modification.

Containers (B) are unsuitable because they share the host OS kernel, meaning they cannot run different OS families. A Type 2 hypervisor (C) is workstation-based and not designed for enterprise server consolidation. VDI (D) provides user desktops, not server workload consolidation. Thus, IaaS is the correct solution for compatibility, isolation, and consolidation across multiple OS types.

Question: 293

Which RAID type offers double parity?

  1. RAID 0
  2. RAID 1
  3. RAID 5
  4. RAID 6

Answer: D

CompTIA A+ teaches that RAID 6 is the RAID level that uses double parity, allowing the array to survive the failure of two drives simultaneously. RAID 6 stripes data across all disks like RAID 5 but stores two independent sets of parity information, making it far more fault-tolerant. RAID 0 has no parity and provides only performance. RAID 1 mirrors data but uses no parity. RAID 5 uses single parity and can tolerate only one disk failure. Because the question explicitly asks for double parity, only RAID 6 is correct.

Question: 294

A user reports cursor issues on a company laptop. Technician finds a bulge under the trackpad. Which component should be replaced first?

  1. Motherboard
  2. Heat sink
  3. Battery
  4. Trackpad

Answer: C

Explanation:

A physical bulge under the trackpad is a classic CompTIA-identified symptom of a swollen lithium-ion battery. As batteries degrade, internal gas buildup expands the casing, pushing upward on the laptop chassis—often distorting the trackpad, keyboard, or bottom shell. This can cause cursor issues, clicking problems, and safety hazards. Replacing the battery first is essential because swollen batteries can rupture, leak, or ignite. Only after the battery is removed and replaced should the technician evaluate whether the trackpad suffered permanent damage.

Replacing the trackpad (D) without addressing the battery fails to correct the root cause. The motherboard (A) and heat sink (B) are unrelated to the physical bulge. Thus, the correct first step is replacing the battery.

Question: 295

A user wants scan-to-email functionality on a printer. Which protocol is required?

  1. SMS
  2. SMTP
  3. SFTP
  4. SMB

Answer: B

Explanation:

Scan-to-email functions rely on the printer sending scanned documents to an email server. CompTIA A+ identifies SMTP (Simple Mail Transfer Protocol) as the protocol responsible for sending email messages from clients to mail servers. When configuring scan-to-email, the technician must enter:

SMTP server address

Authentication credentials

Port number (25, 465, or 587)

Encryption type (TLS/SSL)

Without SMTP, the printer cannot transmit emails.

SMS (A) refers to text messaging. SFTP (C) is secure file transfer, common for scan-to-folder workflows, not email. SMB (D) is used for Windows file sharing.

Therefore, the correct protocol is SMTP.

Question: 296

An engineer must implement a solution to facilitate and maintain an organization’s legacy application until it is retired. The application is currently hosted on three physical servers. Which of the following is the most suitable concept?

  1. SAN
  2. FaaS
  3. Virtualization
  4. Configuration management platform

Answer: C

Explanation:

When a legacy application is running on multiple physical servers, and the organization wants to maintain it until retirement, the best CompTIA-aligned solution is virtualization. Virtualization allows the engineer to convert existing physical servers into virtual machines (VMs), a process known as P2V (Physical-to-Virtual) migration. This reduces hardware footprint, simplifies management, and isolates the application within a controlled environment. CompTIA A+ emphasizes virtualization for legacy support because it eliminates dependence on aging physical hardware while preserving application functionality exactly as before.

Virtual machines also provide snapshots, backups, failover capabilities, and easier resource allocation, making them more reliable than maintaining old hardware. A SAN (A) provides storage, not application hosting. FaaS (B) is a serverless model inappropriate for legacy applications that require full OS environments. A configuration management platform (D) manages software deployments and settings but does not replace or consolidate physical servers.

Thus, virtualization is the most suitable and industry-standard method for sustaining legacy applications.

Question: 297

A company wants to migrate a large amount of data from an on-premises server to a cloud provider. Which connection type is most likely the fastest?

  1. Coaxial
  2. DSL
  3. Fiber
  4. SAN

Answer: C

Explanation:

When migrating large volumes of data to a cloud provider, CompTIA A+ notes that the transfer speed is dominated by the WAN (internet) connection speed. Among the given options, fiber-optic internet (C) provides the highest upload and download throughput, often delivering speeds from 1 Gbps to 10 Gbps or more, depending on the service. Fiber supports symmetrical upload speeds, which is critical because data migration requires heavy upstream bandwidth.

Coaxial (A) and DSL (B) offer much lower upstream speeds—often under 30 Mbps—making them too slow for large-scale cloud migration. A SAN (D) is a local storage network that operates within the data center; it does not provide a path to the cloud and cannot replace an internet connection.

Fiber’s extremely high capacity, low latency, and resistance to electromagnetic interference make it the best and most efficient option for cloud migration performance.

Question: 298

A user attempts to print diagrams on 11×17 inch (28×43 cm) paper. The correct paper is loaded, but the printer keeps prompting for paper. Another identical printer prints successfully. What is the MOST likely cause?

  1. Tray settings
  2. Incorrect driver
  3. Connectivity issues
  4. Insufficient permissions

Answer: A

Explanation:

When a printer refuses to use paper that is physically present in the tray, CompTIA A+ identifies tray configuration settings as the most likely cause. Printers require a match between tray settings (paper size, paper type, orientation) and the incoming print job’s specifications. If the tray is incorrectly configured—such as being set to Letter (8.5×11 in) or A4—then the printer will keep prompting for  the correct paper even though 11×17 paper is loaded.

The fact that the technician successfully prints the same diagram on another identical printer proves that the driver, print job format, and user permissions are correct. This isolates the issue to the local printer’s configuration. Incorrect drivers (B) would affect printing on both printers. Connectivity issues (C) would prevent printing entirely, not cause paper prompts. Permissions (D) do not affect paper-size recognition.

Therefore, the most likely cause is improper tray settings on the user’s printer.

Question: 299

A technician is building a high-powered workstation. When the technician attempts to start the workstation, nothing happens. The technician verifies that all power connectors are fully seated.

Which of the following is the most likely cause of the issue?

  1. The case header pins are not connected.
  2. The RAM is not fully seated.
  3. The power supply unit’s wattage is too low.
  4. The CPU fan connector is faulty

Answer: A

Explanation:

When a newly built workstation shows no response at all—no fans spinning, no indicator LEDs, and no POST activity—this indicates that the system is not receiving the signal to power on. Since the technician has already verified that all primary power connectors are fully seated (including the 24- pin ATX motherboard connector and the 4-pin or 8-pin CPU power connector), the most likely cause is that the case header pins are not connected to the motherboard.

According to CompTIA Core 1 (220-1201) hardware installation and troubleshooting concepts, the power button on the computer case connects to the motherboard via the front-panel (system panel) header, specifically the PWR_SW pins. If this connector is missing, improperly placed, or connected to the wrong pins, pressing the power button will do nothing because the motherboard never receives the power-on signal.

Incorrectly seated RAM typically allows the system to power on but prevents successful POST, often resulting in beep codes or error lights. An underpowered PSU usually causes instability, random shutdowns, or failure under load rather than complete inactivity. A faulty CPU fan connector generally triggers a BIOS warning or shutdown after power-on, not total failure to start.

This scenario directly matches CompTIA’s emphasis on checking front-panel connections as a primary step when a system does not power on at all.

Question: 300

A user only has access to basic printer functions. A technician notices that the advanced printer features are missing. Which of the following actions will fix this issue?

  1. Modifying the printer settings and rebooting the printer
  2. Installing the drivers from the printer’s manufacturer
  3. Restarting the OS and attempting to reprint the document
  4. Applying the OS-provided patches for the printer

Answer: B

Explanation:

When a printer only provides basic functionality (such as simple printing without duplexing, color management, stapling, or finishing options), this typically indicates that the system is using a generic or basic printer driver rather than the full-featured driver from the printer manufacturer. According to CompTIA Core 1 (220-1201) printing and troubleshooting objectives, advanced printer features are enabled through manufacturer-specific drivers, which expose all hardware capabilities to the operating system.

Operating systems often install default or class drivers automatically, especially when printers are connected via USB or discovered on a network. While these drivers allow basic printing, they do not include proprietary features such as high-resolution settings, tray selection, finishing units, or secure printing options. Installing the correct driver package from the printer manufacturer ensures full compatibility and unlocks advanced functionality.

Restarting the OS or modifying printer settings will not add missing features if the correct driver is not installed. OS-provided patches are designed to fix bugs or compatibility issues, not to enable vendor-specific printer capabilities.

CompTIA explicitly emphasizes verifying and installing manufacturer-recommended drivers as a key troubleshooting step when printer features are missing or limited.

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