CompTIA CompTIA Certifications 220-1101 Questions & Answers

• Question 21:

  A user receives the following error when trying to reboot a computer:

  

  Which of the following is the MOST likely cause of this error message?

  A. Corrupted bootloader

  B. Faulty RAID controller

  C. Failed hard drive

  D. Incorrect storage device driver

  Correct Answer: C

  The error message "Reboot and Select Proper Boot Device" indicates that the computer cannot find the boot device that contains the operating system12. This can happen if the hard drive that stores the operating system is damaged or failed, and the BIOS cannot detect it or read from it23. A failed hard drive can also cause other symptoms such as clicking noises, corrupted files, or slow performance4.

• Question 22:

  Which of the following 802.11 Wi-Fi protocols utilizes the 5.0GHz frequency and has the BEST speed and reception?

  A. 802.11a

  B. 802.11 ax

  C. 802.11b/g/n

  D. 802.11n

  Correct Answer: B

  802.11 ax is a wireless networking protocol that utilizes the 5.0GHz frequency and has the best speed and reception among the options given. 802.11 ax offers higher data rates, lower latency, increased capacity, and improved power

  efficiency than previous protocols. It is also known as Wi-Fi 6 or High Efficiency Wireless (HEW). 802.11a also uses the 5.0GHz frequency, but it is an older protocol that has lower speed and reception than 802.11 ax. 802.11b/g/n use the

  2.4GHz frequency, which is more crowded and prone to interference than the 5.0GHz frequency. 802.11n can use both frequencies, but it is also slower and less efficient than 802.11 ax.

  Reference: https://www.comptia.org/training/books/a-core-1-220-1101-study-guide (page 82)

• Question 23:

  A user has noticed high CPU temperatures when gaming. The user would like to lower the CPU temperature, and cost is not an issue. Which of the following should the user do to BEST cool the CPU while keeping noise to a minimum?

  A. Upgrade the thermal paste.

  B. Use a copper heat sink.

  C. Upgrade the CPU fan.

  D. Install liquid cooling.

  Correct Answer: D

  Liquid cooling is a method of cooling the CPU by circulating a liquid through a closed loop that absorbs heat from the CPU and transfers it to a radiator. Liquid cooling is more effective and quieter than air cooling, which uses a fan and a heat sink. However, liquid cooling is also more expensive and complex to install. Upgrading the thermal paste, using a copper heat sink, or upgrading the CPU fan are ways to improve air cooling, but they will not lower the CPU temperature as much as liquid cooling. References: https://www.comptia.org/certifications/a#examdetails https://www.comptia.org/blog/what-is- liquid-cooling

• Question 24:

  An IT manager is evaluating ticket resolution times. While reviewing the data, the manager notices repetitive issues are taking longer than expected to resolve. Which of the following changes should the manager implement to resolve repetitive issues more quickly?

  A. Require the technicians to spend more time testing theories to determine the root causes of issues.

  B. Require the technicians to verify full system functionality when resolving issues.

  C. Require the technicians to gather more information when speaking with users about issues.

  D. Require the technicians to document the findings, action, and outcomes of issues.

  Correct Answer: D

  By documenting the findings, action, and outcomes of issues, the technicians can create a knowledge base that can be used to resolve similar issues in the future more quickly and efficiently. The documentation can also help identify patterns or trends that can lead to preventive measures or root cause analysis. Documenting the issues can also improve communication and collaboration among technicians and users, as well as provide evidence of service quality and performance. Reference: https://partners.comptia.org/docs/default-source/resources/a-core-1-content-guide (page 4)

• Question 25:

  A technician is preparing laptops for deployment to a medical department. The laptops require SSD-level encryption to be enabled, but BitLocker refuses to turn it on. An error message states that a BIOS-level setting has not been turned on. Which of the following should the technician check FIRST when troubleshooting this issue?

  A. Recorder the priority in Widows Boot Manager.

  B. Check to make sure Secure Boot is turned on.

  C. Ensure that the Trusted Platform Module enabled.

  D. Verify that the latest updates are installed.

  Correct Answer: C

  The Trusted Platform Module (TPM) is a hardware component that provides cryptographic functions and secure storage for encryption keys, passwords, and certificates. BitLocker requires a TPM to be enabled and activated in the BIOS or UEFI settings of the laptop in order to use SSD-level encryption. The technician should check that the TPM is enabled and activated before trying to turn on BitLocker. Reference:https://partners.comptia.org/docs/default-source/resources/a-core-series-combined-content-guide (page 34)

• Question 26:

  A laptop does not have any audio output from the built-in speakers. The Windows Device Manager shows a down arrow for the audio device. Which of the following will correct this audio issue?

  A. Replacing the speakers

  B. Increasing the volume

  C. Enabling the audio device

  D. Updating the driver

  Correct Answer: C

  Enabling the audio device is the correct action to correct an audio issue where a laptop does not have any audio output from the built-in speakers and Windows Device Manager shows a down arrow for the audio device. A down arrow indicates that the audio device is disabled and needs to be enabled by right-clicking on it and selecting Enable device. Replacing the speakers, increasing the volume, or updating the driver are unlikely to solve the issue if the audio device is disabled.

• Question 27:

  A user is unable to connect a mobile phone while in a car. However, a second mobile Device is able To connect in The same car, WHICH of the Following settings should the user check on the first phone?

  A. Wi-Fi

  B. Hotspot

  C. Bluetooth

  D. Location

  Correct Answer: C

  To connect a mobile phone to a car, you need to pair them using Bluetooth, which is a wireless technology that allows secure local networks between devices1. If one phone can connect to the car but another cannot, it means that the first phone has Bluetooth enabled and paired with the car, while the second phone does not. Therefore, the user should check the Bluetooth settings on the second phone and make sure it is turned on and discoverable

• Question 28:

  A user uploads a file to a storage location that is accessible via a web browser and a client application. The user's coworkers can access the file as well. The service that the file is stored with is provided by a third party for a monthly fee. The third party's service is available to any business or consumer who would like to use the service. Which of the following BEST describes the type of service that is in use?

  A. Hybrid cloud

  B. Infrastructure as a service

  C. Public cloud

  D. Private cloud

  Correct Answer: C

  A public cloud is a cloud computing model that provides services and resources to anyone over the internet. The service that the user uploads a file to is an example of a public cloud service, as it is accessible via a web browser and a client application, allows multiple users to access the file, and is provided by a third party for a monthly fee. A hybrid cloud is a combination of public and private cloud services that share data and resources. Infrastructure as a service is a cloud computing model that provides servers, storage, networking, and software over the internet. Private cloud is a cloud computing model that provides services and resources to a specific organization or group over a private network

• Question 29:

  A user reports that a computer has a virus on it. Which of the following is the FIRST step the technician should take?

  A. Determine a plan of action to resolve the problem.

  B. Run antivirus software to remove the virus from the computer.

  C. Ask the user about the symptoms the computer is experiencing.

  D. Make a backup of the user's data on an external drive.

  Correct Answer: C

  Asking the user about the symptoms the computer is experiencing is the first step the technician should take when a user reports that a computer has a virus on it. This step helps the technician to gather information and identify the problem before determining a plan of action to resolve it. Running antivirus software, making a backup of the user's data, or determining a plan of action are not the first steps, but possible actions that can be taken after identifying the problem.

• Question 30:

  Atechnician is replacing all RJ45 cables in a customer environment. Which of the following are the BEST tools to execute the task? (Select TWO).

  A. Optical fiber tester

  B. Scissors

  C. Cable tester

  D. Crimper

  E. Coaxial cable

  F. Screwdriver

  Correct Answer: CD

  A cable tester and a crimper are the best tools to execute the task of replacing all RJ45 cables in a customer environment. A cable tester can be used to check the continuity and quality of a cable, and a crimper can be used to attach RJ45 connectors to the ends of a cable. An optical fiber tester is a tool that can be used to test fiber optic cables, which are not RJ45 cables. Scissors are not a tool for replacing cables, but for cutting them. A coaxial cable is a type of cable that has a single copper conductor at its center, which is not an RJ45 cable either. A screwdriver is not a tool for replacing cables, but for fastening or loosening screws.