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CompTIA A+ Core 2 2026 past questions and answers

This 2026 CompTIA A+ Core 2 set has 20 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2026 set with instant marking.

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Sample CompTIA A+ Core 2 2026 questions

1. A Windows 11 workstation feels slow, and the technician needs a quick live view of CPU, memory, disk, and network use by process. Which built-in tool is the best choice?
  1. Task Manager
  2. Disk Cleanup
  3. Device Manager
  4. Registry Editor

Answer: A. Task Manager

Task Manager's Processes and Performance views show live resource use, including per-process activity. Device Manager manages hardware and drivers rather than monitoring current workload.

2. Windows 11 boots, but a technician suspects corruption in the online Windows component store and wants to repair that image before running System File Checker. Which command should be used?
  1. sfc /scannow
  2. chkdsk C: /f
  3. DISM /Online /Cleanup-Image /RestoreHealth
  4. bootrec /fixmbr

Answer: C. DISM /Online /Cleanup-Image /RestoreHealth

DISM with RestoreHealth repairs the running Windows image/component store; SFC checks and repairs protected system files and is commonly run afterward. CHKDSK targets file-system errors, not the component store.

3. On a Linux workstation, a technician wants to list the current directory's entries, including hidden names such as .config. Which command is appropriate?
  1. pwd
  2. ls -a
  3. whoami
  4. df -h

Answer: B. ls -a

The -a option makes ls include hidden entries, whose names typically begin with a dot. pwd prints the current path but does not list directory contents.

4. A company gives employees standard accounts for everyday work and requires a separate administrator account only for approved elevation. Which security principle is being applied?
  1. Open access
  2. Non-repudiation
  3. Obfuscation
  4. Least privilege

Answer: D. Least privilege

Least privilege limits each account to the permissions needed for its task and uses elevation only when required. Non-repudiation concerns proving who performed an action, not limiting routine permissions.

5. A powered-off laptop containing company files is stolen. Which control most directly helps prevent an attacker from reading the data by removing the storage drive and connecting it elsewhere?
  1. A longer screen-saver timeout
  2. Full-disk encryption
  3. A hidden wireless network name
  4. A standard user account

Answer: B. Full-disk encryption

Full-disk encryption protects data at rest, including when the drive is removed and read on another system. A screen lock or standard account does not by itself protect the drive's contents offline.

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