The opcode in an instruction specifies the: MCQ with Answer and Explanation

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The opcode in an instruction specifies the:

A. Address

B. Data value

C. Register number only

D. Operation to be performed

Answer: Option D

Solution (By JKSSB Mock Tests)

Opcode tells the CPU what action to take.

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

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Practice More CPU (Central Processing Unit) Questions

Question #1

Core parking is a power management feature that:

A. Clears cache

B. Increases voltage

C. Overclocks active cores

D. Puts idle cores into sleep state

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Correct Answer: Option D

Explanation:
Saves energy.

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

Question #2

What does the acronym FPU stand for in CPU context?

A. Fetch Pipeline Unit

B. Fast Processing Unit

C. Flag Processing Unit

D. Floating Point Unit

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Correct Answer: Option D

Explanation:
FPU handles floating-point arithmetic operations.

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

Question #3

The ALU can perform:

A. Storage only

B. No comparisons

C. Shift operations in some designs

D. Only addition

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Correct Answer: Option C

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

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

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