What is the function of the memory manager in an OS? MCQ with Answer and Explanation

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What is the function of the memory manager in an OS?

A. Allocates and deallocates memory to processes

B. Handles input/output devices

C. Manages file storage

D. Controls network traffic

Answer: Option A

Solution (By JKSSB Mock Tests)

Memory management is a core OS function that allocates RAM to programs and prevents conflicts.

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Question #1

What is the main advantage of open-source software?

A. Users can modify and distribute the source code

B. It is always free

C. It has better security than closed source

D. It does not require an OS

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Correct Answer: Option A

Explanation:
Open-source software allows users to view, modify, and distribute the source code.

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Question #2

Which of the following describes an operating system capability that allows multiple programs or tasks to appear to run concurrently by rapidly switching the CPU's attention between them?

A. Multitasking

B. Multiprocessing

C. Real-time Streaming

D. Multithreading

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Correct Answer: Option A

Explanation:
Multitasking allows an operating system to execute multiple applications concurrently by slicing CPU cycles among them.

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Question #3

Which of the following is an example of a utility software for file compression?

A. Excel

B. Word

C. Chrome

D. WinZip

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Correct Answer: Option D

Explanation:
WinZip is a file compression and archiving utility.

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