What does the Control Unit do during the decode phase? MCQ with Answer and Explanation

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What does the Control Unit do during the decode phase?

A. Interprets the instruction

B. Fetches data from disk

C. Performs calculations

D. Stores results

Answer: Option A

Solution (By JKSSB Mock Tests)

Decoding involves interpreting the instruction to determine the required action.

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

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Practice More CPU (Central Processing Unit) Questions

Question #1

Overclocking a CPU means:

A. Adding software

B. Disabling cores

C. Running at higher than rated clock speed

D. Running at lower speed

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Correct Answer: Option C

Explanation:
It increases performance but risks stability and heat.

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

Question #2

The load-store architecture is typical of:

A. CISC only

B. No processors

C. RISC processors

D. Memory only

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Correct Answer: Option C

Explanation:
Operations are performed on registers after loading from memory.

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

Question #3

Which register temporarily holds data being processed by the ALU?

A. Accumulator

B. Status Register

C. Program Counter

D. Address Register

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Correct Answer: Option A

Explanation:
The Accumulator is commonly used to hold operands and results of ALU operations.

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

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