Which memory is directly accessible by CPU? MCQ with Answer and Explanation

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Which memory is directly accessible by CPU?

A. Secondary storage

B. Blu-ray disc

C. Registers and cache

D. Tape drive

Answer: Option C

Solution (By JKSSB Mock Tests)

CPU accesses registers and cache fastest.

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A device driver is required for:

A. Hardware to communicate with OS

B. Only printers

C. Only monitors

D. Software installation

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Correct Answer: Option A

Explanation:
Drivers translate OS commands to hardware.

This question belongs to: Computer Computer Hardware

Question #2

What causes dead pixels in monitors?

A. High usage

B. Wrong cable

C. Low brightness

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Correct Answer: Option D

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Non-functional sub-pixels.

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What allows hot swapping of devices?

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D. All ports

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Correct Answer: Option C

Explanation:
Without reboot.

This question belongs to: Computer Computer Hardware

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