The coherence directory is used in: MCQ with Answer and Explanation

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The coherence directory is used in:

A. Mobile only

B. Single core

C. Large scale multi-core systems

D. Cache less designs

Answer: Option C

Solution (By JKSSB Mock Tests)

For directory-based coherence.

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

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Question #1

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The commit stage ensures:

A. Fetch happens first

B. Decode only

C. ALU idle

D. Architectural state is updated correctly

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Correct Answer: Option D

Explanation:
Finalizes results in program order.

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

Question #2

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Which unit decodes machine instructions?

A. CU

B. Memory

C. I/O Controller

D. ALU

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Correct Answer: Option A

Explanation:
The Control Unit handles instruction decoding.

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

Question #3

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The translation lookaside buffer (TLB) caches:

A. Data values

B. Virtual to physical address translations

C. Instructions

D. Control signals

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Correct Answer: Option B

Explanation:
Speeds up memory address translation.

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

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