The pipeline stall due to structural hazard happens when: MCQ with Answer and Explanation

The pipeline stall due to structural hazard happens when:

A. Two instructions need the same hardware resource

B. Cache miss

C. Data dependency

D. Branch taken

Answer: Option A

Resource conflict.

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

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Question #1 Report Error

L3 cache is typically:

A. Private to each core

B. Used only for instructions

C. Shared among all CPU cores

D. Slower than registers but faster than RAM

Correct Answer: Option C

Explanation:
It acts as a larger shared cache layer.

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

Question #2 Report Error

Which register is used to store the result of comparison operations?

A. MAR

B. Accumulator

C. Flag Register

D. Program Counter

Correct Answer: Option C

Explanation:
Flags indicate results such as zero, carry, overflow.

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

Question #3 Report Error

What does the Control Unit do during the decode phase?

A. Performs calculations

B. Stores results

C. Fetches data from disk

D. Interprets the instruction

Correct Answer: Option D

Explanation:
Decoding involves interpreting the instruction to determine the required action.

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