CompTIA A+ Core 2 — Practice Exam
1.0 Operating Systems: practice questions
Our CompTIA A+ Core 2 bank has 78 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1
A user plugs a USB drive formatted with ext4 into a Windows 11 PC. What is the most likely result?
- Windows converts it to NTFS without data loss
- Windows opens it normally with full read/write access
- Windows mounts it read-only and shows all files
- It is unreadable without extra software
Show the answer
D. It is unreadable without extra software — Windows has no built-in ext4 driver, so the volume appears unreadable. Accepting the format prompt would erase the data.
Question 2
Which command shows the Resultant Set of Policy, listing which GPOs applied to the user and computer?
- netstat -r
- gpupdate /r
- gpresult /r
- whoami /r
Show the answer
C. gpresult /r — gpresult /r displays RSoP summary data for the current user and computer.
Question 3
A user receives an attachment named invoice.pdf.exe but sees only 'invoice.pdf'. Which File Explorer setting would reveal the real file type?
- Turn on 'Launch folder windows separately'
- Turn off 'Hide extensions for known file types'
- Turn on 'Show hidden files, folders, and drives'
- Turn off 'Show recently used files'
Show the answer
B. Turn off 'Hide extensions for known file types' — With known extensions hidden, the final .exe is not shown. Showing extensions exposes double-extension tricks.
Question 4
Which partition style must the system disk use for Windows to boot in UEFI mode?
- Extended
- Dynamic
- GPT
- MBR
Show the answer
C. GPT — Windows requires a GPT disk to boot in UEFI mode, and an MBR disk to boot in legacy BIOS mode.
Question 5
In 2026 a small office still runs Windows 10 22H2 on its PCs with no Extended Security Updates. What is the main concern?
- The PCs no longer receive security updates
- Microsoft accounts can no longer sign in
- The PCs will stop booting after a set date
- The PCs automatically upgrade to Windows 11
Show the answer
A. The PCs no longer receive security updates — Windows 10 reached end of support on October 14, 2025. Without ESU, devices keep working but get no security fixes, a vendor life-cycle risk.