Which of the following is an example of a distributed operating system? MCQ with Answer and Explanation

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Which of the following is an example of a distributed operating system?

A. Windows Server

B. Amoeba

C. Android

D. Linux

Answer: Option B

Solution (By JKSSB Mock Tests)

Amoeba is a distributed OS that manages a collection of computers as a single system; others are not distributed by default.

This question belongs to: Computer Operating Systems

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Question #1

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In Windows Operating Systems, which system tool is explicitly used to optimize disk space by rearranging fragmented files into contiguous sectors?

A. Disk Defragmenter and Optimize Drives

B. Chkdsk

C. Disk Cleanup

D. Task Manager

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Correct Answer: Option A

Explanation:
Disk Defragmenter consolidates fragmented files on a hard drive to improve read/write access speeds and overall system performance.

This question belongs to: Computer Operating Systems

Question #2

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Which term describes the operational condition where a CPU is constantly swapping memory pages between RAM and disk, leading to massive system slowdown?

A. Paging

B. Multiprocessing

C. Thrashing

D. Caching

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Correct Answer: Option C

Explanation:
Thrashing occurs when virtual memory resources are overused, causing the OS to spend more time moving data between disk and RAM than executing actual application instructions.

This question belongs to: Computer Operating Systems