Return stack buffer helps predict: MCQ with Answer and Explanation

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Return stack buffer helps predict:

A. ALU results

B. Data loads

C. Function returns accurately

D. Cache hits

Answer: Option C

Solution (By JKSSB Mock Tests)

For CALL/RET pairs.

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

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Question #1

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Which is a common cause of CPU stalls?

A. Larger cache

B. Cache miss or branch misprediction

C. High clock speed

D. More cores

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Correct Answer: Option B

Explanation:
Both increase pipeline bubbles.

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

Question #2

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Which is critical for cloud computing CPUs?

A. High density, security, and virtualization support

B. Low core count

C. Consumer features

D. Gaming graphics

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Correct Answer: Option A

Explanation:
Optimized for multi-tenant environments.

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

Question #3

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The dispatch buffer holds:

A. Committed results

B. Addresses only

C. Fetched but not decoded

D. Instructions ready for execution

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Correct Answer: Option D

Explanation:
In out-of-order processors.

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

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