CompTIA 220-1201 Exam Prep
CompTIA A+ Certification: Core 1 (Page 16 )

Updated On: 5-Sep-2026

A technician is troubleshooting issues occurring on a user's mobile device. Applications and the OS have slow response times, even when performing simple tasks, such as writing an email. Additionally, new applications occasionally fail to launch.
Which of the following should the technician do next?

  1. Move the device to a room with a colder temperature.
  2. Close unnecessary programs.
  3. Reset to factory default settings.
  4. Check the battery health of the device.

Answer(s): B



A user connects their laptop to a projector in a conference room. Once connected, the user reports the screen is smaller at the bottom than at the top. The user tries restarting the laptop and then disconnecting and reconnecting the cable to the projector.
Which of the following should a technician do to resolve the issue?

  1. Replace the HDMI cable.
  2. Power cycle the projector.
  3. Adjust the keystone.
  4. Increase the resolution.

Answer(s): C

Explanation:

Trapezoidal distortion, where one edge of the projected image is shorter than the opposite edge, is corrected by the projector’s keystone adjustment. Tweaking the keystone settings on the projector will square the image without replacing hardware or changing resolutions.



A projector has been shutting down after 30 minutes of use, and it has a strange smell. The technician confirms the power source is not the cause of the issue.
Which of the following steps should the technician take next to resolve this issue?

  1. Replace the bulb.
  2. Check the projector configuration.
  3. Clean the filter.
  4. Adjust the gamma settings

Answer(s): C

Explanation:

Dust buildup in the air filter restricts airflow, causing the projector to overheat and shut down safety after a set period, often accompanied by a burning-dust odor. Cleaning or replacing the filter restores proper ventilation and prevents overheating.



A user reports that the printouts from a laser printer have lines and smudges on them. The printer is also intermittently misfeeding the paper.
Which of the following components should a technician replace to address this issue?

  1. Fuser
  2. Maintenance kit
  3. Corona wire
  4. Toner cartridge

Answer(s): B

Explanation:

A maintenance kit replaces the printer’s wear items - feed rollers, separation pads, and often the fuser assembly - restoring proper paper handling (fixing misfeeds) and eliminating print defects like lines and smudges.



A company has a main office and 20 branch offices. The company wants to have a backup network connection to allow connectivity if the main fiber connection goes down. The company does not want to create new infrastructure.
Which of the following should the company use?

  1. Cable
  2. Cellular
  3. DSL
  4. SAN

Answer(s): B

Explanation:

Using cellular backup leverages the existing mobile network without laying new cables or fiber. Cellular routers can automatically fail over to LTE/5G whenever the primary fiber link goes down, ensuring continued connectivity for all sites without additional on-premises infrastructure.



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