Processor registers are used to: MCQ with Answer and Explanation

Question Report Error

Processor registers are used to:

A. Store data permanently

B. Control peripheral devices

C. Perform input operations

D. Hold data and instructions for immediate processing

Answer: Option D

Solution (By JKExamLibrary)

Registers provide fast temporary storage within the CPU for quick access by ALU.

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

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Practice More CPU (Central Processing Unit) Questions

Question #1 Report Error

The commit stage ensures:

A. Decode only

B. Architectural state is updated correctly

C. ALU idle

D. Fetch happens first

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Correct Answer: Option B

Explanation:
Finalizes results in program order.

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

Question #2 Report Error

The opcode in an instruction specifies the:

A. Address

B. Operation to be performed

C. Data value

D. Register number only

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Correct Answer: Option B

Explanation:
Opcode tells the CPU what action to take.

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

Question #3 Report Error

Speculative execution in CPU:

A. Waits for all conditions

B. Executes instructions before knowing if needed

C. Increases latency

D. Reduces cores

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Correct Answer: Option B

Explanation:
It improves performance but can have security implications like Spectre.

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

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