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質問 # 171
A customer is able to print most documents with their USB inkjet printer, but the system is unresponsive when printing a certain report from a custom application. Nothing will print until the computer is restarted and the printer is power cycled. A technician remotes into the PC and confirms that the spooler stops working when this report is sent. After cleaning the spooler and reinstalling the drivers from the manufacturer's website, the issue persists. No other sites using the application report similar issues. Which of the following is most likely causing the issue?
- A. The system is using the PostScript language instead of the PCL.
- B. The application has a bug that the developer needs to address.
- C. Personal preferences have changed and documents with graphics are now online-only
- D. The manufacturer is curating content before it reaches the device to preserve ink.
正解：B
解説：
If a print spooler crashes specifically with one application and no issue occurs on other systems, the most likely root cause is a bug within that specific application. Restarting the spooler and reinstalling drivers resolves system-wide or hardware-related issues--not app-specific failures.
This indicates the application may be sending malformed print data.
質問 # 172
A user returns from a trip and discovers a computer that is connected to the LAN times out intermittently Upon investigation, a technician finds the RJ45 pin is not property terminated Which of the following networking tools is most appropriate to fix the issue?
- A. Cable tester
- B. Crimper
- C. Toner probe
- D. Punchdown
正解：B
解説：
A crimper is used to terminate an RJ45 cable properly by attaching the connector to the twisted-pair wires.
If the termination is not done correctly, the connection will be intermittent or fail entirely.
Incorrect Options:
A). Toner probe: Used to locate cables or trace their path, not for terminating RJ45 connectors.
B). Cable tester: Useful for testing connectivity but does not fix termination issues.
C). Punchdown: Used to connect wires to a patch panel or keystone jack, not for RJ45 connectors.
Key Takeaway: A crimper is the proper tool for fixing an improperly terminated RJ45 connection.
質問 # 173
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?
- A. Set up a PIN for user authentication at the printer
- B. Configure printing of sensitive data through a specific tray
- C. Relocate the printer to an unused office space
- D. Schedule print jobs to be released at certain times
正解：A
解説：
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.
Reference: CompTIA A+ Core 1 220-1201 Official Study Guide, Section: Printer SecuritySecure printing with PIN authentication ensures only the document owner can release sensitive print jobs.
質問 # 174
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?
- A. eSIM
- B. MDM
- C. EPS
- D. GPS
正解：B
解説：
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.
質問 # 175
Which of the following cables should be installed if nearby electromagnetic interference is a possibility?
- A. STP
- B. Thunderbolt
- C. UTP
- D. USB
正解：A
解説：
Shielded Twisted Pair (STP) cabling is specifically designed to protect data transmissions from electromagnetic interference (EMI) and radio frequency interference (RFI). According to CompTIA Core 1 (220-1201) networking cabling objectives, STP cables include an additional shielding layer-either around individual wire pairs or the entire cable-that reduces the impact of external electrical noise.
In environments where network cables are installed near heavy machinery, fluorescent lighting, power cables, or radio transmitters, EMI can cause data corruption, retransmissions, and reduced network performance. STP helps maintain signal integrity in these high-interference environments.
Unshielded Twisted Pair (UTP) relies only on wire twisting to reduce interference and is more susceptible to EMI compared to STP. Thunderbolt and USB are peripheral interface standards, not structured network cabling solutions, and they are not intended for long-distance network installations.
CompTIA emphasizes selecting the appropriate cabling type based on environmental factors, particularly when interference is a concern. For locations with potential EMI, STP is the recommended choice.
References:CompTIA A+ Core 1 (220-1201) Official Study Guide - Network Cabling, EMI, and Installation Best Practices
質問 # 176
Which of the following display technologies typically provides the highest contrast?
- A. TN
- B. OLED
- C. VA
- D. IPS
正解：B
解説：
OLED (Organic Light-Emitting Diode) technology can turn off individual pixels completely, producing "true black" and resulting in the highest contrast ratios compared to other display types.
From CompTIA A+ 220-1101 Official Study Guide, Objective 3.1 - Display types and features:
"OLED displays provide superior contrast by emitting light per pixel, allowing perfect black and extremely high contrast ratios." Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Display Technologies CompTIA Exam Objectives 220-1101, Domain 3.1
質問 # 177
When installing a network printer, a technician needs to ensure the printer is available after a network is restarted. Which of the following should the technician set up on the printer to meet this requirement?
- A. Wi-Fi on the printer
- B. Dynamic addressing
- C. Static IP address
- D. Private address
正解：C
解説：
Assigning a static IP address to a network printer ensures it always retains the same address, allowing users and print servers to consistently reach it even after a reboot or network refresh.
質問 # 178
A technician is having issues replacing a laptop's wireless card because the cover seems to be stuck Which of the following should the technician do next to troubleshoot this issued
- A. Use a pry tool to force the cover open
- B. Try to move the cover by sliding it in all directions.
- C. Check the product manual for the procedure
- D. Insert the wireless card into the M.2 slot
正解：C
解説：
A:Check the product manual for the procedure:
When hardware is not easily accessible, always consult the product manual for proper disassembly procedures. Forcing the cover can damage the laptop or void the warranty.
Product manuals often provide step-by-step instructions for safely accessing internal components.
Incorrect Options:
B: Use a pry tool to force the cover open: Forcing the cover can cause physical damage to the device.
C: Insert the wireless card into the M.2 slot: This step cannot be performed until the cover is properly removed.
D: Try to move the cover by sliding it in all directions: Randomly sliding the cover can cause damage if the correct removal method is not followed.
Key Takeaway: Always refer to the product manual to ensure safe and proper disassembly of laptop components.
Reference: CompTIA A+ Core 1 Exam Objectives (220-1201), Domain 4.1 - Best practices for laptop hardware installation.
質問 # 179
A customer is able to print most documents with their USB inkjet printer, but the system is unresponsive when printing a certain report from a custom application. Nothing will print until the computer is restarted and the printer is power cycled. A technician remotes into the PC and confirms that the spooler stops working when this report is sent. After clearing the spooler and reinstalling the drivers from the manufacturer's website, the issue persists. No other sites using the application report similar issues. Which of the following is most likely causing the issue?
- A. The system is using the postscript language instead of the PCL.
- B. The application has a bug that the developer needs to address.
- C. Personal preferences have changed and documents with graphics are now online-only.
- D. The manufacturer is curating content before it reaches the device to preserve ink.
正解：B
解説：
Since the printer and drivers function correctly with all other documents, and the spooler fails only when printing from one specific custom application, the issue likely lies within that application's print-handling code. This indicates a software bug that must be resolved by the application developer.
質問 # 180
A salesperson is unable to use a personal device to access emails and calendar features at a client site but was able to use the device while at the office.
Which of the following policies has been enforced on the salesperson's mobile device?
- A. MOW
- B. MFA
- C. MAM
- D. MAN
正解：C
解説：
Mobile Application Management (MAM) enforces policies restricting access to apps and services based on location, ensuring security at external sites.
質問 # 181
A technician needs to scan-to-file from a legacy printer. The technician sets up a shared drive but then is unable to view the scanned files. The technician confirms their credentials are valid.
Which of the following should the technician do to the computer to view the scanned files?
- A. Enable SMB 1.0 through Windows features.
- B. Disable the firewall on the desktop PC.
- C. Add a $ to the end of the share name.
- D. Remove the malware protection software.
正解：A
解説：
Many legacy printers rely on the older SMB 1.0 protocol for scan-to-file functionality. Enabling SMB 1.0 on the computer allows it to communicate properly with the legacy device so the scanned files can be accessed on the shared drive.
質問 # 182
A technician builds a workstation. When the technician starts up the workstation, the technician notices a burning smell. During POST, the workstation shuts down. Which of the following is most likely the cause of these issues?
- A. The technician did not connect power to the exhaust fan.
- B. The technician did not apply thermal paste.
- C. The technician did not properly ground the workstation.
- D. The technician chose the wrong type of RAM.
正解：B
解説：
A shutdown during POST combined with a burning smell strongly indicates an overheating condition occurring almost immediately after power-on. In a newly built workstation, the most common cause of rapid CPU overheating is improper heatsink installation, especially failing to apply thermal paste (thermal compound) between the CPU and the heatsink. Thermal paste fills microscopic imperfections between the two metal surfaces so heat can transfer efficiently into the heatsink. Without it, the CPU can spike to unsafe temperatures within seconds. Modern systems detect this and trigger protective thermal shutdown during POST to prevent permanent CPU or motherboard damage. The burning smell can occur when components near the CPU socket heat excessively or when protective coatings/dust residues warm quickly due to poor heat dissipation.
The wrong type of RAM (B) would more likely cause no-boot/beep codes rather than a burning smell. Not properly grounding (A) relates to ESD damage risk, but that typically causes intermittent or dead hardware symptoms, not immediate thermal shutdown. A disconnected case exhaust fan (C) can contribute to higher case temperatures, but it's less likely to cause an immediate POST shutdown compared to missing thermal paste on the CPU cooler.
質問 # 183
Faded images from previous jobs appear on each page of output from an office printer. Which of the following should a technician do first to resolve this issue?
- A. Reload the paper tray.
- B. Adjust the fuser temperature.
- C. Clean the corona wire.
- D. Inspect the transfer roller.
正解：C
解説：
Ghosting, where faint images from previous print jobs appear on new pages, is commonly caused by a dirty corona wire. Cleaning the corona wire restores proper charge distribution so toner does not remain on the drum between print cycles.
質問 # 184
A customer reports their tablet was recently dropped on the ground. The tablet has a small crack in one corner of the display, and it does not charge when plugged in. Which of the following should a technician do first?
- A. Run diagnostics on the digitizer
- B. Replace the battery
- C. Inspect the USB-C port for damage
- D. Perform a hard restart.
正解：C
解説：
Comprehensive and Detailed Explanation From Exact Extract:
Physical damage from dropping a tablet may often affect ports or connectors. Before taking deeper diagnostic or replacement steps, it's important to visually inspect the USB-C charging port for damage or debris. If the port is damaged, charging issues can occur regardless of battery health.
#Reference: "CompTIA A+ All-in-One Exam Guide, 11th Edition" by Mike Meyers - Chapter 25,
"Maintaining and Securing Mobile Devices", page 879.
質問 # 185
Which of the following best represents the purpose of NFC?
- A. Short-distance wireless connections between two devices
- B. Wireless connections between multiple devices at once
- C. Wired connections between several devices
- D. Direct connection of two computers for file sharing
正解：A
解説：
NFC (Near-Field Communication) is a subset of RFID technology designed for very short-range wireless communication, typically within a few centimeters. It is primarily used for contactless transactions, like mobile payments, and can also support peer-to-peer data exchanges. NFC operates at 13.56 MHz and enables devices to communicate when placed near each other.
Reference: "CompTIA A+ Complete Study Guide" by Quentin Docter - Chapter 7, "Wireless and SOHO Networks", page 400.
質問 # 186
An employee cannot connect to the wireless network at the office but can connect to a personal wireless network when at home. The technician verifies the wireless network name is correct, and the signal strength appears to be strong. Which of the following is the best action for the technician to take to resolve the issue?
- A. Install the current 802.1X certificate.
- B. Check the wireless router settings.
- C. Disable the Windows firewall.
- D. Update the wireless driver.
正解：A
解説：
802.1X is a network authentication protocol commonly used in enterprise environments. If the user cannot connect to the office wireless network but can connect at home, the issue is likely related to the 802.1X certificate required for authentication. Installing or updating the certificate will resolve the issue.
質問 # 187
A user reports slow internet browsing. The technician finds high CPU and memory usage, and pop- ups occur every minute. Which of the following should the technician do next?
- A. Download and install the latest drivers.
- B. Escalate to the network team to check end-to-end connectivity.
- C. Update the anti-malware signatures and scan the system.
- D. Check the wireless settings and validate the DHCP configuration.
正解：C
解説：
High resource usage along with frequent pop-ups are strong signs of a malware infection. The next logical step is to update anti-malware definitions and run a full scan to detect and remove threats.
質問 # 188
A technician sets up secure print and configures an NFC device that will authenticate users for access. Which of the following will the NFC device most likely use to authenticate?
- A. Password
- B. Passcode
- C. Badging
- D. Biometrics
正解：C
解説：
Badging refers to the use of NFC-enabled ID badges or cards that authenticate users when tapped against a reader for secure print or access control.
From CompTIA A+ 220-1101 Official Study Guide, Objective 3.4 - Secure printing and authentication:
"NFC authentication is commonly implemented using employee badges, allowing secure and convenient access to devices and functions." Verified Source:
* CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Secure Print Solutions
* CompTIA Exam Objectives 220-1101, Domain 3.4
質問 # 189
Each lime a user ties to print, the paper becomes stuck at the last stage of the print job and the user has to poll me paper out of the printer.
Which of the following is me most likely cause?
- A. Toner
- B. Rollers
- C. Tray assembly
- D. Printhead
正解：B
解説：
If paper gets stuck at the last stage of printing, the rollers responsible for moving the paper through the printer are likely worn out or dirty.
質問 # 190
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?
- A. VLAN
- B. Gateway
- C. Subnet mask
- D. VPN
正解：B
解説：
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.
質問 # 191
Users in a 200-person call center report that phone calls experience severe performance degradation on busy days. The technician confirms:
* Upload and download speeds are 50Mbps during a speed test.
* VoIP call prioritization settings are properly configured for the VLAN that the call center uses.
Which of the following is most likely the cause of this issue?
- A. The switchports dedicated to the call center are flapping.
- B. The bandwidth dedicated to the call center is insufficient.
- C. The call center's VLAN is not configured to allow voice traffic.
- D. The QoS is not configured correctly on the router.
正解：B
解説：
Voice over IP (VoIP) traffic is highly sensitive to latency, jitter, and packet loss, especially in large environments such as a 200-person call center. Although the technician confirms that VoIP prioritization (QoS) is configured correctly and speed tests show 50 Mbps upload and download speeds, overall available bandwidth can still be insufficient during peak usage.
Speed tests measure raw throughput at a point in time and do not reflect real-world congestion caused by hundreds of simultaneous calls, application usage, and data transfers. On busy days, the cumulative bandwidth demand likely exceeds the available capacity, leading to degraded call quality despite correct VLAN and QoS settings.
If QoS were misconfigured or the VLAN did not allow voice traffic, call issues would be consistent at all times, not only during peak periods. Flapping switchports would cause intermittent connectivity drops rather than predictable performance degradation correlated with high usage.
CompTIA highlights that bandwidth limitations are a common root cause of VoIP performance problems in high-density environments, even when prioritization is properly implemented.
Reference:
CompTIA A+ Core 1 (220-1201) Official Study Guide - Networking Performance, QoS, and VoIP
質問 # 192
Several storms cause mission-critical servers to go offline unexpectedly A server also goes offline suddenly due to haroNvare failure Upon assessment the company purchases new UPSs to condition power and allow the OSs to shut down gracefully in the event of a power failure However, the UPSs are delayed due to supply chain issues. Which of the following can balance a cost-effective solution with uptime requirements?
- A. Activating a hot site
- B. Increasing input voltage
- C. Installing redundant PSUs
- D. Purchasing backup generators
正解：C
解説：
Redundant PSUs provide fault tolerance by ensuring that if one power supply fails, another will take over seamlessly.
This is a cost-effective way to increase uptime while waiting for the UPSs to arrive.
質問 # 193
Which cloud characteristic allows local folders to contain updates made by users or other devices?
- A. Synchronization
- B. Metered utilization
- C. Network share
- D. Availability
正解：A
解説：
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
質問 # 194
Which of the following connector types is associated with coaxial terminations serving cable internet deployments?
- A. DB9
- B. F-type
- C. RJ45
- D. ST
正解：B
解説：
F-type connectors are commonly used to terminate coaxial cables in cable internet, cable TV, and satellite connections.
質問 # 195
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?
- A. Coaxial
- B. DSL
- C. SAN
- D. Fiber
正解：D
解説：
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.
質問 # 196
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