In Windows, the 'System File Checker' (SFC) is used to: MCQ with Answer and Explanation

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In Windows, the 'System File Checker' (SFC) is used to:

A. Check disk integrity

B. Scan and repair corrupted system files

C. Restore system settings

D. Update system drivers

Answer: Option B

Solution (By JKSSB Mock Tests)

sfc /scannow verifies the integrity of protected system files and replaces incorrect versions.

This question belongs to: Computer Operating Systems

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Practice More Operating Systems Questions

Question #1

Which Linux command is used to change the permissions of a file?

A. umask

B. chgrp

C. chown

D. chmod

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Correct Answer: Option D

Explanation:
The chmod (change mode) command modifies file permissions (read, write, execute) for owner, group, and others.

This question belongs to: Computer Operating Systems

Question #2

Which tool or key combination is used in Windows to forcefully bring up the direct Windows Security screen options to lock, log off, or launch Task Manager?

A. Ctrl + Alt + Delete

B. Alt + F4

C. Windows Key + L

D. Ctrl + Shift + Esc

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Correct Answer: Option A

Explanation:
Pressing Ctrl + Alt + Delete triggers a low-level hardware interrupt that opens the secure Windows options overlay screen.

This question belongs to: Computer Operating Systems

Question #3

Which Windows version was the first to introduce the Start Menu?

A. Windows NT

B. Windows 98

C. Windows 3.1

D. Windows 95

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Correct Answer: Option D

Explanation:
Windows 95 introduced the Start Menu as a central point for accessing programs and settings.

This question belongs to: Computer Operating Systems

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