What is the difference between a desktop and mobile operating system? MCQ with Answer and Explanation

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What is the difference between a desktop and mobile operating system?

A. Mobile OS is optimized for touch and smaller screens; desktop for mouse/keyboard

B. Desktop OS handles multitasking; mobile does not

C. Desktop OS is free; mobile OS is paid

D. No difference

Answer: Option A

Solution (By JKSSB Mock Tests)

Mobile OSes like Android and iOS are designed for touchscreens and resource constraints.

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Question #1

Which of the following is a characteristic of proprietary software?

A. Source code is available

B. Free to distribute

C. Restricted use and distribution

D. Can be modified by users

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Correct Answer: Option C

Explanation:
Proprietary software has restrictions on copying, modifying, and redistributing.

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Question #2

Which software utility uses a sandbox environment to securely run and analyze suspicious files without risking damage to the host operating system?

A. System Registry Cleaner

B. File Archiver Engine

C. Malware Analysis Sandbox / Security Utility

D. Disk Defragmenter

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Correct Answer: Option C

Explanation:
A malware analysis sandbox is a security utility that isolates untrusted files in a secure virtual environment to monitor their behavior safely.

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Question #3

What is the purpose of a resource allocator in an OS?

A. Manages files

B. Allocates CPU, memory, and I/O to processes

C. Connects to internet

D. Compiles programs

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Correct Answer: Option B

Explanation:
Resource allocation is a core function of the OS to ensure fair usage.

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