Which of the following is an example of an open-source operating system? MCQ with Answer and Explanation

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Which of the following is an example of an open-source operating system?

A. Microsoft Windows 11

B. Linux

C. MS-DOS

D. Apple macOS

Answer: Option B

Solution (By JKSSB Mock Tests)

Linux is developed under an open-source license, allowing anyone to view, modify, and redistribute its underlying source code freely.

This question belongs to: Computer Operating Systems

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Question #1

Which of the following is a feature of the FAT32 file system?

A. Support for file permissions

B. Encryption

C. Journaling

D. Wide compatibility with various operating systems

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Correct Answer: Option D

Explanation:
FAT32 is compatible with nearly all OSes, but lacks security features like permissions, journaling, and encryption.

This question belongs to: Computer Operating Systems

Question #2

Which Linux terminal command outputs the total number of lines, words, and characters contained inside a specified text file?

A. grep

B. wc

C. count

D. ls -s

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Correct Answer: Option B

Explanation:
The 'wc' (word count) command calculates and prints line counts, word totals, and byte metrics for a targeted text file.

This question belongs to: Computer Operating Systems

Question #3

What is the primary objective of a 'Cold Boot' procedure?

A. Running an offline antivirus scan.

B. Lowering the operational temperature of the CPU fan.

C. Restarting the computer purely through terminal soft commands.

D. Starting up a computer system that was completely powered off, initializing hardware components anew.

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Correct Answer: Option D

Explanation:
A cold boot occurs when the power switch is flipped from 'Off' to 'On', triggering a complete hardware check and OS load from scratch.

This question belongs to: Computer Operating Systems

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