What is the role of the shell in an OS? MCQ with Answer and Explanation

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What is the role of the shell in an OS?

A. Manages network

B. Manages files

C. Manages memory

D. Interprets user commands

Answer: Option D

Solution (By JKSSB Mock Tests)

The shell is a user interface that interprets and executes commands.

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Question #1

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A system program that stays in memory to perform automatic, background file backup tasks without user intervention is known as a:

A. Foreground App

B. Boot Loader Routine

C. Daemon / Background Service

D. Compiler Script

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Correct Answer: Option C

Explanation:
Daemons (Unix) or background services (Windows) run quietly in the background to handle system monitoring, backups, and network tasks without manual user oversight.

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Question #2

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Which type of software license covers applications whose code can be used for any purpose, but requires all derivative works to include attribution and keep the same license terms?

A. Creative Commons Attribution-ShareAlike / Open Source License

B. Public Domain Status

C. Closed-Source Freeware Framework

D. Proprietary License

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Correct Answer: Option A

Explanation:
ShareAlike or copyleft open-source licenses ensure that modifications remain open and accessible, requiring attribution and consistent licensing terms.

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