CompTIA 220-1201 (page: 7)

CompTIA A+ Certification: Core 1

Updated 17-Apr-2026

Which of the following would prevent a virtual machine from communicating with any endpoints on a network or the internet?

  1. VDI
  2. Private cloud
  3. Sandbox
  4. Type 1 hypervisor

Answer(s): C

Explanation:

A sandbox is designed to isolate a virtual environment from the rest of the system and network. By default, it's cut off from external endpoints, preventing any network or internet communication and ensuring that code running inside cannot affect other resources.



A technician recently updated the firmware on a dual-BIOS motherboard. Following the update, the system has been stuck in a boot loop and cannot start an OS from any internal or external device. The technician cannot access the UEFI menu either.
Which of the following should the technician do next?

  1. Enable the secondary configuration.
  2. Downgrade the firmware via US
  3. Start a warranty repair of the motherboard.
  4. Reapply thermal paste to the CPU.

Answer(s): A

Explanation:

On a dual-BIOS motherboard, if the primary BIOS image becomes corrupt (such as after a failed update) the board can switch to its backup BIOS. Enabling or triggering the secondary BIOS lets you recover the system and reflash the primary chip without replacing hardware.



Which of the following cloud models exclusively utilizes a local data center?

  1. Private
  2. Public
  3. Hybrid
  4. Community

Answer(s): A

Explanation:

A private cloud is built and operated solely within an organization's own data center (or on dedicated infrastructure), ensuring all resources remain local and under the company's direct control.



A customer has several bare-metal servers running a mix of Windows, Linux, and Unix OSs. The customer wants to consolidate the servers but is concerned about data privacy and recurring costs.
Which of the following solutions should a technician recommend?

  1. IaaS
  2. Containers
  3. Type 2 hypervisor
  4. VDI

Answer(s): B



A technician is troubleshooting internet connectivity issues after a firewall update. Users report that they can access local network resources, such as printers and shares, but cannot access the internet.
Which of the following settings is most likely causing the issue?

  1. Static IP assignments
  2. Default gateway
  3. Subnet mask
  4. VLANs

Answer(s): B

Explanation:

If the firewall's default gateway (its route to upstream networks/the internet) is misconfigured or missing after the update, the devices can still reach local subnets but have no path out to the internet.



A help desk technician inspects a laptop keyboard because a single key has stopped working. The technician checks the keyboard for debris.
Which of the following actions should the technician do next to troubleshoot the issue cost-effectively?

  1. Replace the keyboard.
  2. Replace the key switch.
  3. Replace the circuit board.
  4. Replace the keycap.

Answer(s): D



An end user's domain password expires while they are working from home. The end user tries to reset the password using Ctrl+Alt+Delete and then receives the following message:

Configuration information could not be read from the domain controller, either because the machine is unavailable or because access denied.

Which of the following will resolve this issue?

  1. Restart the computer
  2. Connect to the VPN.
  3. Reset the account in Active Directory.
  4. Join the Wi-Fi network.

Answer(s): B

Explanation:

When working remotely, the workstation can't reach the on-premises domain controller to authenticate or change an expired password. Establishing the VPN connection restores that secure link so the machine can contact the DC and process the password change.



A computer displays an error message indicating there is insufficient storage when installing applications. The user reports slow application load times.
Which of the following replacement components would best resolve this issue?

  1. SSD
  2. USB
  3. HDD
  4. RAM

Answer(s): A

Explanation:

An SSD provides both greater usable storage capacity (if you choose a larger drive) and vastly improved read/ write speeds compared to a traditional HDD. This upgrade eliminates the "insufficient storage" error while also delivering much faster application load times. RAM upgrades wouldn't address disk capacity, and swapping in another HDD wouldn't significantly improve performance.



Page 7 of 47

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