Branch misprediction leads to: MCQ with Answer and Explanation

Question

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Branch misprediction leads to:

A. Reduced power consumption

B. Increased clock speed

C. Pipeline flush and performance loss

D. Better cache hit rate

Answer: Option C

Solution (By JKSSB Mock Tests)

Wrong prediction requires discarding speculative work.

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

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Question #1

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The ALU can perform:

A. No comparisons

B. Shift operations in some designs

C. Storage only

D. Only addition

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Correct Answer: Option B

Explanation:
ALU typically supports arithmetic, logic, and bit manipulation including shifts.

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

Question #2

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Hyper-threading technology allows a CPU core to:

A. Increase physical cores

B. Store more data

C. Reduce heat

D. Execute multiple threads simultaneously

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Correct Answer: Option D

Explanation:
It enables better utilization by handling multiple threads per core.

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

Question #3

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The instruction cache primarily stores:

A. Frequently used instructions

B. Addresses

C. Data operands

D. Results

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Correct Answer: Option A

Explanation:
To speed up fetch stage.

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

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