Which unit coordinates the activities of all other units in the CPU? MCQ with Answer and Explanation

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Which unit coordinates the activities of all other units in the CPU?

A. ALU

B. Register

C. CU

D. Bus

Answer: Option C

Solution (By JKSSB Mock Tests)

The Control Unit directs the overall operation of the processor.

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

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Question #1

Which technique reduces branch misprediction penalty?

A. Slower clock

B. Branch prediction and speculative execution

C. Fewer registers

D. No prediction

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Correct Answer: Option B

Explanation:
Modern CPUs use advanced predictors.

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

Question #2

The status of 'dirty' bit in cache indicates:

A. Clean data

B. Modified data needing write-back

C. Invalid entry

D. Shared data

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Correct Answer: Option B

Explanation:
For write-back policy.

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

Question #3

The ALU can perform:

A. Only addition

B. No comparisons

C. Shift operations in some designs

D. Storage only

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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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