CompTIA 220-1201 Exam Questions
CompTIA A+ Certification: Core 1 (Page 10 )

Updated On: 26-May-2026

Which of the following types of RAM is best suited to handle errors within the module itself?

  1. DIMM
  2. Dual channel
  3. ECC
  4. SODIMM

Answer(s): C

Explanation:

Error-Correcting Code (ECC) RAM includes additional parity bits and logic to detect and correct single-bit errors on the fly, ensuring data integrity within the memory module.



A technician needs to move a workstation to a different logical network segment. Which of the following technologies should the technician use?

  1. DHCP
  2. VLAN
  3. DNS
  4. VPN

Answer(s): B

Explanation:

A VLAN (Virtual LAN) lets you place a workstation on a different logical network segment without changing its physical connection - simply assign its switch port (or its NIC's VLAN tag) to the desired VLAN to move it into that segment.



After a technician installs a new motherboard, the computer will not start and fails POST. The technician verifies the power supply is functioning as expected, and the CPU is installed correctly. Which of the following steps should the technician complete next?

  1. Flash the BIOS.
  2. Check the CMOS battery.
  3. Reseat the RAM.
  4. Reinstall the old motherboard.

Answer(s): C

Explanation:

Memory issues are a common cause of POST failures after a motherboard swap. Reseating the RAM ensures the modules make proper contact with the new board's slots before pursuing more invasive steps like BIOS flashes or component swaps.



Which of the following is an advantage of using VDI?

  1. Authentication is not required on a domain.
  2. Licensing costs are minimized.
  3. Less manual configuration is needed for each workstation.
  4. A virus is automatically contained locally.

Answer(s): C

Explanation:

With VDI, desktop images and settings are managed centrally on the server. When you update or configure the base image once, every virtual desktop inherits those changes - eliminating the need to manually configure each individual workstation.



A user is unable to access secure applications on their tablet when working from home a couple days per week, but the applications work when in the office. Which of the following services most likely needs to be reconfigured to allow for remote work?

  1. Global Positioning System
  2. Mobile device management
  3. Wi-Fi Protected Access
  4. Near-field communication

Answer(s): B

Explanation:

An MDM system controls policies, certificates, and VPN profiles on managed tablets. If secure apps work on the corporate network but fail at home, the MDM configuration (for example, VPN or certificate deployment) needs updating to support off-network connectivity.



A systems administrator deploys BitLocker to all devices. However, one of the desktop PCs is not able to encrypt the boot drive. Which of the following should the administrator check?

  1. TPM
  2. CPU
  3. RAM
  4. HDD

Answer(s): A

Explanation:

BitLocker relies on a Trusted Platform Module to securely store encryption keys and enable drive encryption of the boot volume. If a desktop PC can't encrypt its boot drive, the first thing to verify is that a compatible TPM chip is present and enabled in the BIOS/UEFI.



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.



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