Which Linux command changes the file ownership designation from one user account to another? MCQ with Answer and Explanation

Which Linux command changes the file ownership designation from one user account to another?
A. chown
B. passwd
C. chgrp
D. chmod
Answer: Option A
Solution (By JKSSB Mock Tests)
The 'chown' command stands for change owner, used by administrators to alter individual user ownership assignments on files or folders.

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Practice More Operating Systems Questions

Question #1
What is the primary difference between a process and a thread?
A. An operating system contains multiple threads but only one master process.
B. A process is a program in execution with its own isolated address space, while a thread is a smaller execution unit within a process.
C. Processes can run concurrently, whereas threads can only run sequentially.
D. Threads have larger memory spaces than processes.

Correct Answer: Option B


Explanation:
Processes run inside distinct, isolated memory spaces managed by the OS, whereas threads represent execution pathways sharing the resources of their parent process.

This question belongs to: Computer Operating Systems
Question #2
Which Windows feature allows multiple virtual desktops?
A. Virtual Desktop Manager
B. Task View
C. Multiple Desktops
D. Windows Snap

Correct Answer: Option B


Explanation:
Task View in Windows 10/11 allows creating, managing, and switching between multiple virtual desktops.

This question belongs to: Computer Operating Systems
Question #3
What is the purpose of the Android 'WallpaperService'?
A. To set wallpapers
B. To draw wallpapers
C. To create live wallpapers that run as a service
D. To manage wallpapers

Correct Answer: Option C


Explanation:
WallpaperService is the base class for live wallpapers, enabling animations and interactive backgrounds.

This question belongs to: Computer Operating Systems