Which Linux command is used to change the current directory? MCQ with Answer and Explanation

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Which Linux command is used to change the current directory?

A. ls

B. dir

C. pwd

D. cd

Answer: Option D

Solution (By JKSSB Mock Tests)

cd (change directory) moves the user to a different directory.

This question belongs to: Computer Operating Systems

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Question #1

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What structural concept prevents an application from directly modifying memory frames allocated to another independent active process?

A. Spooling Buffer Layers

B. Asymmetric Slicing

C. Context Switching Delays

D. Memory Protection (via Page Permissions)

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Correct Answer: Option D

Explanation:
Memory protection schemes utilize hardware page tables and boundaries to prevent processes from accessing or corrupting another process's memory space.

This question belongs to: Computer Operating Systems

Question #2

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What is the default file system used by Windows 10 and 11?

A. NTFS

B. exFAT

C. ext4

D. FAT32

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Correct Answer: Option A

Explanation:
Windows uses NTFS (New Technology File System) as its default file system for internal drives, supporting security, compression, and large files.

This question belongs to: Computer Operating Systems