Power gating technique turns off: MCQ with Answer and Explanation

Power gating technique turns off:

A. Unused circuit blocks to save leakage power

B. ALU permanently

C. Cache only

D. All cores simultaneously

Answer: Option A

It improves energy efficiency.

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

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Question #1 Report Error

The load/store architecture restricts memory access to:

A. Control unit

B. All instructions

C. ALU only

D. Dedicated load and store instructions

Correct Answer: Option D

Explanation:
Typical in RISC designs.

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

Question #2 Report Error

The latency of register access is:

A. Variable by design

B. Hundreds of cycles

C. 1 clock cycle or less

D. Same as main memory

Correct Answer: Option C

Explanation:
Registers are the fastest storage.

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

Question #3 Report Error

Which is a characteristic of ARM processors?

A. Energy efficiency for mobile devices

B. High power consumption desktops

C. Limited to servers

D. CISC architecture

Correct Answer: Option A

Explanation:
They dominate mobile and embedded markets.

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