The control bus carries: MCQ with Answer and Explanation

Question

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The control bus carries:

A. Signals like read/write, interrupt

B. Data values

C. ALU operands

D. Memory addresses

Answer: Option A

Solution (By JKSSB Mock Tests)

Commands and status.

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

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Question #1

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Which register is used to store the return address during subroutine calls?

A. Accumulator

B. Program Counter

C. Link Register

D. Flag Register

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Correct Answer: Option C

Explanation:
Link Register (in many architectures) holds the return address.

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

Question #2

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Which company leads in GPU integrated with CPU?

A. Separate always

B. Intel only older

C. AMD with APUs

D. No integration

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Correct Answer: Option C

Explanation:
Efficient unified memory.

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

Question #3

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The retire stage in pipeline:

A. Decodes

B. Executes only

C. Fetches

D. Commits results of executed instructions

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Correct Answer: Option D

Explanation:
It ensures in-order completion where necessary.

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

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