What is the difference between a 32-bit and 64-bit operating system? MCQ with Answer and Explanation

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What is the difference between a 32-bit and 64-bit operating system?

A. The number of users they support

B. The file system used

C. The speed of the processor

D. The amount of memory they can address

Answer: Option D

Solution (By JKSSB Mock Tests)

The main difference is the addressable memory space; 64-bit can address much more than 4 GB.

This question belongs to: Computer Operating Systems

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Question #1

Which type of OS allows multiple users to work on the same system simultaneously?

A. Multi-user OS

B. Embedded OS

C. Real-time OS

D. Distributed OS

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Correct Answer: Option A

Explanation:
Multi-user operating systems enable multiple users to concurrently access system resources, each with their own session (e.g., Linux, Windows Server).

This question belongs to: Computer Operating Systems

Question #2

What is the main role of the Android 'Dalvik/ART Virtual Machine'?

A. To execute Android applications (bytecode) on the device

B. To provide user interface

C. To manage hardware resources

D. To handle network connections

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Correct Answer: Option A

Explanation:
The virtual machine executes the DEX bytecode compiled from Java/Kotlin code, translating it to native instructions.

This question belongs to: Computer Operating Systems

Question #3

In Windows, the 'System Properties' can be accessed by running:

A. systeminfo

B. sysdm.cpl

C. control system

D. msinfo32

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Correct Answer: Option B

Explanation:
sysdm.cpl opens the System Properties dialog for computer name, hardware, and performance settings.

This question belongs to: Computer Operating Systems

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