Core 2: Operating Systems
47 practice questions with explanations — 15 free to try
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PassNova has 47 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.
Core 2: Operating Systems: example questions & answers
2 worked examples with answers and explanations below. Try 15 CompTIA A+ questions free in the browser; the full 47-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.
Which command checks a disk for errors and bad sectors?
- Achkdsk✓
- Btasklist
- Cipconfig
- Dsfc
Answer: chkdsk scans the file system and disk for errors and can repair them with switches like /f and /r.