CompTIA CompTIA Certifications 220-1101 Questions & Answers

• Question 641:

  Which of the following wireless technologies would a company most likely implement for inventory management?

  A. NFC

  B. 5G

  C. Bluetooth

  D. RFID

  Correct Answer: D

  Explanation: RFD stands for Radio Frequency Identification, which is a technology that uses radio waves to identify and track objects that have RFID tags attached to them. RFID tags are small devices that store information and can be read by RFID readers without direct contact or line of sight. RFID can be used for inventory management, as it can provide real-time visibility and accuracy of the location, quantity, and status of the items in a warehouse, store, or supply chain .

• Question 642:

  A user is having trouble accessing files on the network. A technician suspects the issue is a result of a failed NIC_ Which of the following steps should the technician take to troubleshoot this issue?

  A. Document key findings, actions, and outcomes

  B. Establish a theory of probable cause.

  C. Test the theory to determine the cause_

  D. Identify the problem and act

  E. Verity system functionality

  Correct Answer: C

  Explanation: The answer is C. Test the theory to determine the cause.

  According to the CompTIA A+ troubleshooting methodology, the steps to troubleshoot any problem are: Identify the problem and act Establish a theory of probable cause Test the theory to determine the cause Establish a plan of action to resolve the problem and implement the solution Verify system functionality and implement preventive measures Document key findings, actions, and outcomes In this scenario, the technician has already identified the problem (trouble accessing files on the network) and established a theory of probable cause (a failed NIC). The next step is to test the theory to determine the cause, which involves verifying whether the NIC is working properly or not. Some possible ways to test the theory are: Check the physical connection and status of the NIC port and cable12 Check the link state and speed of the NIC using ethtool or ip commands2 Check the configuration and state of the NIC using nmcli, teamdctl, or teamnl commands2 Check the driver and firmware of the NIC using lspci, modinfo, or dmesg commands2 Check the logs for any errors or warnings related to the NIC using journalctl or grep commands2 Uninstall and reinstall the NIC driver using Device Manager or modprobe commands13 Replace the NIC or cable with a known good one and test again13 If any of these tests confirm that the NIC is faulty, then the technician can proceed with the next step of establishing a plan of action to resolve the problem and implement the solution. If none of these tests reveal any issues with the NIC, then the technician can eliminate it as a probable cause and look for other possible causes. Therefore, option C is the correct answer.

• Question 643:

  A technician needs to test a new USB headset for videoconference calls. Audio playback is working as expected, but sound from the microphone is not being recorded. The Device Manager and Sound settings show the microphone is installed. Which of the following should the technician do next?

  A. Examine the application and device mute controls.

  B. Connect the headset to a different USB port.

  C. Check the device's driver release date.

  D. Increase the speaker volume setting.

  Correct Answer: A

• Question 644:

  A user reports that a display is slow to turn on, and the colors are distorted and discolored. Once the display turns on, it appears to have lines going through the image and intermittently goes blank. Which of the following is the most likely cause of the issue?

  A. Incorrect data source

  B. Incorrect resolution settings

  C. Physical cabling issues

  D. Incorrect refresh rate

  E. Display burn-in

  Correct Answer: C

  Explanation: Physical cabling issues refer to any problems with the cables or connectors that connect a display to a computer or a power source. Physical cabling issues can cause various symptoms, such as slow to turn on, distorted and discolored images, lines going through the image, and intermittent blank screens. The technician should check the cables and connectors for any damage, looseness, or interference.

• Question 645:

  A technician needs to upgrade the power supply of a workstation that contains a high-end graphics card, 16 hyperthreaded cores, and multiple hard drives. Which of the following should the technician use to determine the appropriate power supply for the workstation?

  A. The manufacturer's specifications for the components

  B. The wattage of the current power supply

  C. The wattage of the motherboard

  D. The capacity of the hard drives

  E. The number of hyperthreaded cores

  Correct Answer: A

  Explanation: The manufacturer's specifications for the components are the best source of information to determine the appropriate power supply for the workstation. The manufacturer's specifications will list the power requirements and recommendations for each component, such as the graphics card, the CPU, the hard drives, and the motherboard. By adding up the power consumption of each component, the technician can estimate the total wattage needed for the workstation. The technician should also consider some extra headroom for future upgrades or peak loads. The technician can then choose a power supply that meets or exceeds the total wattage and has the right connectors and form factor for the workstation.

• Question 646:

  A company's cloud server has recently become unresponsive due to overwhelming e- commerce traffic Which of the following cloud technologies could be dynamically assigned to mitigate this issue?

  A. High availability

  B. Shared resources

  C. Metered utilization

  D. Rapid elasticity

  Correct Answer: D

• Question 647:

  A technician is working with a vendor to resolve an issue that a user reported. The vendor indicates that the technician's next step is to update the firmware. Which of the following is the most important step the technician should take before proceeding?

  A. Verify the device is fully charged and connected to a power supply.

  B. Ensure the device has adequate storage space for the update.

  C. Verify administrative access on the device.

  D. Export the users settings so they can be imported after the upgrade

  Correct Answer: A

  Explanation: The most important step the technician should take before proceeding is A. Verify the device is fully charged and connected to a power supply.

  Firmware is a type of software that controls the basic functions and operations of a device, such as a router, printer, or scanner. Firmware can be updated to fix bugs, improve performance, or add new features to the device. However, updating firmware can also be risky, as it may cause the device to malfunction or become unusable if the update process is interrupted or corrupted. One of the main causes of firmware update failure is power loss, which can occur if the device runs out of battery or is disconnected from the power source during the update. Power loss can damage the firmware and prevent the device from booting up or functioning properly. Therefore, it is essential to verify that the device is fully charged and connected to a power supply before updating the firmware. This can ensure that the device has enough power to complete the update process and avoid any interruptions or errors. The other options are not as important as verifying the power status of the device. Ensuring the device has adequate storage space for the update is a good practice, but it is not likely to cause a major problem if the device does not have enough space. The update process will either fail to start or prompt the user to free up some space before proceeding. Verifying administrative access on the device is also a good practice, but it is not necessary for updating firmware. Administrative access is required for installing or uninstalling software applications, but not for updating firmware. Firmware updates are usually provided by the device manufacturer or vendor and do not require user authentication. Exporting the user settings so they can be imported after the upgrade is a precautionary measure, but it is not mandatory for updating firmware. Firmware updates do not usually affect the user settings or data on the device, unless they are incompatible or corrupted. Exporting the user settings can help restore them in case of any problems, but it does not prevent them from occurring.

• Question 648:

  A user keeps a company-provided camera's battery charger plugged into a docking station at a desk. Company policy requires that USB devices be identified and approved by installed peripheral security software. A technician is unable to add a unique identifier to the battery charger's security software. Which of the following should the technician do?

  A. Provide a USB to AC adapter for the battery charger.

  B. Add a powered USB hub to the docking station.

  C. Disable the peripheral security software for this user only.

  D. Replace the battery charger with a USB device that has a unique identifier.

  Correct Answer: A

  Explanation: The problem in this scenario is that the battery charger is not a USB device, but a device that plugs into a USB port to draw power. Therefore, it does not have a unique identifier that can be recognized by the peripheral security software, which is designed to prevent unauthorized USB devices from accessing the company's network or data. The security software cannot add the battery charger to its whitelist, and may block its power supply or generate alerts. The best solution for this problem is to provide a USB to AC adapter for the battery charger, which is a device that converts the USB power output to an AC power input that can be plugged into a wall outlet. This way, the battery charger does not need to connect to the docking station or the computer, and does not trigger the peripheral security software. The user can still charge the camera's battery without compromising the company's security policy. The other options are not advisable because they either do not solve the problem or create new risks. Option B, adding a powered USB hub to the docking station, may not work if the security software also monitors the hub's ports and detects the battery charger as an unknown device. Option C, disabling the peripheral security software for this user only, is a very bad idea because it exposes the user's computer and the company's network to potential attacks from malicious USB devices. Option D,

  replacing the battery charger with a USB device that has a unique identifier, is unnecessary and costly, and may not be compatible with the camera's battery.

  References:

  CompTIA A+ Core 1 (220-1101) Certification Study Guide, Chapter 9: Security, Section 9.3: Device Security, Page 419

  CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Pearson uCertify Course and Labs and Textbook Bundle, Chapter 9: Security, Section 9.3: Device Security, Page 420 CompTIA A+ Core 1 (220-1101) and Core 2 (220-1102) Exam

  Cram, Chapter 9:

  Security, Section 9.3: Device Security, Page 402

• Question 649:

  A user reports that a computer has been randomly shutting down without warning. Which of the following is the most likely cause of the issue?

  A. Corrupted OS

  B. Incompatible memory modules

  C. Overheated CPU

  D. Low system resources

  Correct Answer: C

  An overheated CPU is the most likely cause of a computer that has been randomly shutting down without warning. A CPU generates heat when it performs calculations, and if the heat is not dissipated properly, it can damage the CPU or cause it to malfunction. A computer that shuts down randomly is a common symptom of an overheated CPU, as the system tries to protect itself from further damage by shutting down or restarting. The other options are not as likely to cause this issue. A corrupted OS may cause the computer to crash, display errors, or fail to boot, but it does not affect the CPU temperature or the system fan. Incompatible memory modules may cause the computer to beep, display a blue screen, or fail to recognize the installed RAM, but they do not cause the CPU to overheat or the system to shut down randomly. Low system resources may cause the computer to slow down, freeze, or display a low memory warning, but they do not affect the CPU temperature or the system fan. To troubleshoot and resolve an overheated CPU issue, the user should check and clean the air vents, provide proper ventilation, apply thermal paste, replace the fan or the heat sink, or upgrade the CPU if necessary. The user should also update the BIOS and the device drivers, adjust the power settings, and monitor the system temperature using diagnostic tools. References: CompTIA A+ Certification ore 1 Objectives1 The Official CompTIA A+ Core 1 Student Guide (Exam 220-1101) eBook2 How to Troubleshoot Fan Issues | Dell US3 Why your laptop fan is loud and how to fix it | Asurion4 HP Notebook PCs - Fan is noisy and spins constantly (Windows)5

• Question 650:

  An administrator is replacing 15,000rpm hard drives in a server. Which of the following is the interface type the drives most likely use?

  A. IDE

  B. SAS

  C. eSATA

  D. SATA

  Correct Answer: B

  Explanation: SAS stands for Serial Attached SCSI, which is a bit serial interface successor to SCSI sponsored by ANSI and introduced in 20041. SAS is the most common interface for enterprise HDDs, especially those with high performance and high reliability requirements, such as 15,000rpm drives23. SAS offers faster data transfer speeds, lower power consumption, and better scalability than other interfaces1.