The write-back cache policy: MCQ with Answer and Explanation

Question

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The write-back cache policy:

A. Delays write to memory until needed

B. Writes data to memory immediately

C. Never writes

D. Reads only

Answer: Option A

Solution (By JKSSB Mock Tests)

It improves performance by reducing memory writes.

This question belongs to: Computer CPU (Central Processing Unit)

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Question #1

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Guard pages and stack canaries are:

A. Software security features supported by CPU

B. Hardware only

C. Unrelated to CPU

D. Power features

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Correct Answer: Option A

Explanation:
Prevent exploits.

This question belongs to: Computer CPU (Central Processing Unit)

Question #2

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Precision Boost Overdrive (PBO) is an AMD feature for:

A. Core parking

B. Cache clearing

C. Aggressive automatic overclocking

D. Power saving

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Correct Answer: Option C

Explanation:
Uses extra power headroom.

This question belongs to: Computer CPU (Central Processing Unit)

Question #3

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In the instruction cycle, the first step is usually:

A. Decode

B. Fetch

C. Store

D. Execute

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Correct Answer: Option B

Explanation:
The CPU fetches the instruction from memory as the initial step of the fetch-decode-execute cycle.

This question belongs to: Computer CPU (Central Processing Unit)

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