CompTIA A+

D. Bluetooth

Which of the following would be the best technology for a device to wirelessly connect to a speaker?

A. Wi-Fi

B. NFC

C. 5G

D. Bluetooth

D. DDR5

A technician needs to install the appropriate RAM for a performance-intensive gaming desktop computer. Which of the following technologies will the technician most likely select?

A. Non-ECC

B. Single channel

C. Registered

D. DDR5

A. DVI

Which of the following cable types is used to connect a display?

A. DVI

B. RJ45

C. SATA

D. USB 1.1

B. Digitizer

Which of the following is used to register inputs on a touch-screen monitor?

A. Inverter

B. Digitizer

C. OLED

D. LCD

C. Private

A financial organization wants to establish an exclusive cloud instance. Which of the following cloud models should the organization adopt?

A. Hybrid

B. Community

C. Private

D. Public

C. CMOS battery

A user's computer displays the wrong time. The user tries turning the computer off and on, but the time is still incorrect. The user then changes the time in the system settings, which fixes it momentarily, but the time is wrong again after a day. Which of the following is most likely causing the issue?

A. Unseated RAM

B. Power cable

C. CMOS battery

D. Video card

B. NFC

A customer uses a previously configured smartphone to interact with a payment terminal to purchase an item. Which of the following technologies is the smartphone using?

A. RFID

B. NFC

C. 802.11

D. Bluetooth

C. Try a known-good cable.

A user's mobile phone has stopped charging. The technician first inspects the port for dirt or debris. Which of the following steps should the technician perform next to diagnose the issue?

A. Restart the phone.

B. Restore the phone to factory defaults.

C. Try a known-good cable.

D. Send the phone to the vendor for replacement.

E. Replace the charging port.

C. Update the anti-malware signatures and scan the system.

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. Escalate to the network team to check end-to-end connectivity.

B. Download and install the latest drivers.

C. Update the anti-malware signatures and scan the system.

D. Check the wireless settings and validate the DHCP configuration.

A. Battery

A user brings their laptop to the local IT technician due to slow charging. The technician tries using a different AC adapter, but it does not fix the issue. Which of the following components should the technician replace next?

A. Battery

B. RAM

C. TPM

D. Motherboard

C. Join the workstation to the company's domain.

A user cannot access company resources on their new workstation that they could access on their prior workstation. Which of the following actions should a technician take to fix the issue?

A. Provide the user with the administrator account.

B. Disable the firewall on the workstation.

C. Join the workstation to the company's domain.

D. Enable facial recognition on the workstation.

B. Risk assessment

An IT support specialist is preparing to migrate a critical application. This migration will impact the operations during the maintenance window. Which of the following would help the specialist determine the potential impact to the business as part of the change management process?

A. End user acceptance

B. Risk assessment

C. Manager approval

D. Peer review

A. Keylogger

Which of the following is a type of malware designed to record a user's credentials and other entries?

A. Keylogger

B. Trojan

C. Ransomware

D. Rootkit

C. Viewing and sharing permissions

A team member provides a link to an online slide deck presentation so other team members can add to the presentation. The link does not work for any of the other team members. Which of the following should the team check first?

A. Version history

B. Web browser compatibility

C. Viewing and sharing permissions

D. License management

C. Insider threat

A user is purposely deleting files and folders containing company information. Which of the following describes this attack?

A. Whaling

B. On-path attack

C. Insider threat

D. Spoofing

B. Restrict log-in times.

A technician is reviewing malicious activity on a machine. The timestamp information shows this activity takes place overnight. Which of the following should the technician do to prevent further occurrences?

A. Disable guest accounts.

B. Restrict log-in times.

C. Apply an account expiration date.

D. Enable screensaver locks.

C. Security updates are not released.

Which of the following best describes what happens when an OS reaches the EOL date?

A. Users are unable to log on.

B. Users cannot purchase the OS.

C. Security updates are not released.

D. New drivers must be installed.

D. Place the old component in an antistatic bag for shipping.

A technician is replacing a laptop's motherboard that is covered by a warranty. The technician must return the faulty motherboard to the manufacturer as part of the warranty agreement. Which of the following should the technician do after removing the old motherboard and installing the new one?

A. Connect an ESD wrist strap to a grounded connection point.

B. Remove the battery and AC adapter from the laptop.

C. Use compressed air to clean out any loose debris or dirt from inside the laptop.

D. Place the old component in an antistatic bag for shipping.

C. Apologize for the delay and offer a viable solution.

An IT help desk project that was to be completed in three days after work hours for another department is now two days overdue. The department leader is upset and wants to know when the project will be completed. Which of the following is the best approach in this scenario?

A. Escalate to the management team without talking to the department leader.

B. Ask for an extension to the deadline.

C. Apologize for the delay and offer a viable solution.

D. Request the department leader provide the request in writing.

B. Uninstall the unapproved application.

An employee is receiving emails and calls from people in their contact list about phishing emails from the employee. The employee recently installed a third-party email client with access to the device's contacts. Which of the following should the employee do to resolve the issue immediately?

A. Check employee's outgoing mailbox.

B. Uninstall the unapproved application.

C. Delete the contact list from the device.

D. Add the messages to Junk Mail.

D. 500w

A technician needs to replace a failed power supply on a server. The server in question only has one power supply. The server contains two processors that each need 100w, five hard drives that each need 9w, and a GPU that uses 200w. Which of the following power supplies should the technician use?

A. 375w

B. 425w

C. 325w

D. 500w

C. Open the cloud service's client that is locally installed, determine if there are any reported errors, and follow the steps provided to correct the synchronization errors.

An organization uses a cloud storage service to store company files. The file synchronization client for this cloud service is installed on every user's computer. One user reports that a file synced with the client to their computer does not contain information a co-worker of theirs added earlier today. Indicate the BEST action to take when troubleshooting this problem.

A. Exit the cloud service's client that is locally installed, restart the computer, and check to see if the file contains the information that is missing.

B. Visit the cloud service's website, locate the service status page, and determine if there is a service outage impacting the organization.

C. Open the cloud service's client that is locally installed, determine if there are any reported errors, and follow the steps provided to correct the synchronization errors.

D. Open the cloud service's client that is locally installed and check to see if there are any updates available for the client.

C. NFC

A technician is helping a user configure a new mobile phone. The user could pay for purchases with the previous phone by touching the phone to the payment system. Which of the following features should the technician enable so that the user can use the new phone to also pay for purchases this way?

A. PAN

B. RFID

C. NFC

D. Bluetooth

C. Replace the motherboard's CMOS battery.

A user recently reported that every few days the system clock is approximately three minutes behind. The user also received an error message on the BIOS screen. Which of the following would MOST likely fix the clock issue?

A. Enable dual-channel memory by adding a second RAM stick.

B. Install a new power supply.

C. Replace the motherboard's CMOS battery.

D. Configure the PC to be an NTP server.

D. Contact the smartphone manufacturer for warranty support.

A user with a new 5G smartphone notices the device has separated at the seam on one edge and is measurably thicker at that point. Which of the following actions should the user take FIRST?

A. Power off the smartphone and place it in a bucket of rice for 48 hours.

B. Place the smartphone in a refrigerator between 35°F (1.6°C) and 40°F ( 4.4°C) overnight.

C. Fully deplete the phone's battery and then charge it to 100%.

D. Contact the smartphone manufacturer for warranty support.

A. Create a backup of the HDD.

A technician is replacing a laptop's HDD with an SSD. Which of the following should the technician do FIRST?

A. Create a backup of the HDD.

B. Upgrade the RAM on the laptop.

C. Enable SSD support at BIOS.

D. Install SSD drivers inside the OS.

A. Fiber

Which of the following technologies has the FASTEST connection speed?

A. Fiber

B. Satellite

C. DSL

D. Cable

D. High-Definition Multimedia Interface

A PC in a conference room will be connected to a large-screen TV for video presentations during training sessions. Which of the following video connectors is the MOST likely choice for this environment?

A. Video Graphics Array

B. Thunderbolt

C. Digital Visual Interface

D. High-Definition Multimedia Interface

C. Files on devices are inaccessible.

Which of the following symptoms is MOST likely a sign of ransomware?

A. Internet connectivity is lost.

B. Battery life is reduced.

C. Files on devices are inaccessible.

D. A large number of ads appear.

A. Degaussing

A technician has been directed to dispose of hard drives from company laptops properly. Company standards require the use of a high-powered magnet to destroy data on decommissioned hard drives. Which of the following data destruction methods should the technician choose?

A. Degaussing

B. Drilling

C. Incinerating

D. Shredding

A. Turn off airplane mode.

A user reports being unable to access the Internet or use wireless headphones on a mobile device. The technician confirms the headphones properly connect to another device. Which of the following should the technician do to solve the issue?

A. Turn off airplane mode.

B. Connect to a different service set identifier.

C. Test the battery on the device.

D. Disable near-field communication.

D. Document the serial numbers and usernames for asset management.

A sales staff member recently left a laptop at a hotel and needs a new one immediately. After remotely wiping the old laptop, a support technician prepares to take a new laptop out of inventory to begin the deployment process. Which of the following should the technician do FIRST?

A. Recycle all the cardboard and other shipping materials appropriately.

B. Call the hotel and demand the old laptop be sent back to the repair depot.

C. Confirm the shipping address for the new laptop with the sales staff member.

D. Document the serial numbers and usernames for asset management.

D. Electrostatic discharge straps

A technician is installing M.2 devices in several workstations. Which of the following would be required when installing the devices?

A. Air filtration

B. Heat-resistant gloves

C. Ergonomic floor mats

D. Electrostatic discharge straps

B. The system files are corrupted.

A user's Windows desktop continuously crashes during boot. A technician runs the following command in safe mode and then reboots the desktop:

c:\Windows\system32> sfc /scannow

Which of the following BEST describes why the technician ran this command?

A. The user's profile is damaged.

B. The system files are corrupted.

C. The hard drive needs to be defragmented.

D. The system needs to have a restore performed.

C. Ransomware

A user calls the IT help desk and explains that all the data on the user's computer is encrypted. The user also indicates that a pop-up message on the screen is asking for payment in Bitcoins to unlock the encrypted data. The user's computer is MOST likely infected with which of the following?

A. Botnet

B. Spyware

C. Ransomware

D. Rootkit

B. Execute a backout plan.

A network engineer needs to update a network firewall, which will cause a temporary outage. The network engineer submits a change request form to perform the required maintenance. If the firewall update fails, which of the following is the NEXT step?

A. Perform a risk analysis.

B. Execute a backout plan.

C. Request a change approval.

D. Acquire end user acceptance.

B. Windows

Which of the following workstation operating systems uses NTFS for the standard filesystem type?

A. macOS

B. Windows

C. Chrome OS

D. Linux

B. ls

Which of the following Linux commands will display a directory of files?

A. chown

B. ls

C. chmod

D. cls