What is the main advantage of a 64-bit operating system over a 32-bit one? MCQ with Answer and Explanation

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What is the main advantage of a 64-bit operating system over a 32-bit one?

A. Faster CPU speed

B. Better graphics performance

C. Smaller file sizes

D. Ability to address more than 4 GB of RAM

Answer: Option D

Solution (By JKSSB Mock Tests)

64-bit OS can address larger memory space (theoretically up to 16 exabytes) compared to 32-bit's 4 GB limit.

This question belongs to: Computer Operating Systems

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Question #1

Which of the following is a feature of the Windows 10/11 'Task View'?

A. Timeline showing activity history

B. Application grouping

C. Virtual desktops

D. All of the above

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Correct Answer: Option D

Explanation:
Task View includes timeline (Windows 10), virtual desktops, and allows switching and grouping apps.

This question belongs to: Computer Operating Systems

Question #2

In Windows, the 'Registry' value type 'REG_DWORD' represents:

A. A 64-bit integer

B. A binary value

C. A 32-bit integer

D. A string

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Correct Answer: Option C

Explanation:
REG_DWORD is a 32-bit numeric value; REG_QWORD is 64-bit; REG_SZ is string; REG_BINARY is binary.

This question belongs to: Computer Operating Systems

Question #3

What process occurs during a 'Warm Boot' of a computer system?

A. The system is turned on from a complete powered-off state.

B. The computer is reset or restarted using software instructions without cutting off physical electrical power.

C. The operating system is reinstalled entirely from an external installation drive.

D. The CPU is physically heated using diagnostic software tools.

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Correct Answer: Option B

Explanation:
A warm boot (rebooting) occurs when a computer is already running and is restarted using system options or keys without interrupting the electrical power supply.

This question belongs to: Computer Operating Systems

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