CompTIA A+
Core 2: Operating Systems
40 practice questions with explanations — 15 free to try
PassNova has 40 CompTIA A+ practice questions on Core 2: Operating Systems, each with a clear explanation. A 15-question taster is free with no sign-up; the full bank is part of PassNova Premium. Updated for 2026.
Sample questions
Core 2: Operating Systems: example questions & answers
1 worked example with answers and explanations below. Try 15 CompTIA A+ questions free in the browser; the full 40-question Core 2: Operating Systems bank is part of PassNova Premium.
Which Windows command-line tool checks and repairs protected system files?
- Asfc /scannow✓
- Bchkdsk
- Cdiskpart
- Dgpupdate
Answer: System File Checker (sfc /scannow) scans and repairs corrupted protected Windows system files.
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