Which is not a function of the Control Unit? MCQ with Answer and Explanation

Question

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Which is not a function of the Control Unit?

A. Generating timing signals

B. Instruction decoding

C. Performing division

D. Managing data flow

Answer: Option C

Solution (By JKSSB Mock Tests)

Arithmetic operations like division are handled by ALU.

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

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Question #1

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Which of the following is a disadvantage of increasing CPU clock speed?

A. Better efficiency

B. Easier manufacturing

C. Lower cost

D. Higher power consumption and heat

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Correct Answer: Option D

Explanation:
Higher frequencies lead to more power draw and heat issues.

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

Question #2

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Which register temporarily holds data being processed by the ALU?

A. Status Register

B. Program Counter

C. Address Register

D. Accumulator

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Correct Answer: Option D

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

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

Question #3

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Adaptive voltage and frequency scaling (AVFS) optimizes:

A. Maximum voltage

B. No scaling

C. Fixed settings

D. Per core or per die power-performance

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Correct Answer: Option D

Explanation:
Dynamic adjustment.

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

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