The store buffer holds: MCQ with Answer and Explanation

The store buffer holds:

A. Fetched instructions

B. Branch targets

C. Decoded uops

D. Data waiting to be written to memory

Answer: Option D

It allows execution to continue.

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

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Question #1 Report Error

The retire stage in pipeline:

A. Commits results of executed instructions

B. Decodes

C. Executes only

D. Fetches

Correct Answer: Option A

Explanation:
It ensures in-order completion where necessary.

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

Question #2 Report Error

The ROB (Reorder Buffer) size affects:

A. How many instructions can be in flight

B. Address bus

C. Cache size

D. Power only

Correct Answer: Option A

Explanation:
Larger ROB supports more out-of-order execution.

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

Question #3 Report Error

The shadow stack is a security feature for:

A. Power management

B. Data encryption

C. Protecting return addresses

D. Cache protection

Correct Answer: Option C

Explanation:
Against ROP attacks.

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