The decode unit converts: MCQ with Answer and Explanation

The decode unit converts:

A. High-level code

B. Results to output

C. Addresses to data

D. Machine code to internal micro-ops

Answer: Option D

Prepares for execution.

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

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Question #1 Report Error

Pipelining in CPU improves performance by:

A. Reducing number of registers

B. Overlapping instruction execution stages

C. Eliminating ALU

D. Increasing clock speed only

Correct Answer: Option B

Explanation:
It allows multiple instructions to be processed in different stages concurrently.

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

Question #2 Report Error

Multi-level cache hierarchy reduces:

A. Average memory access time

B. Instruction set

C. Core count

D. Clock frequency

Correct Answer: Option A

Explanation:
Exploits locality.

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

Question #3 Report Error

The issue stage in pipeline:

A. Fetches from memory

B. Decodes only

C. Writes results

D. Dispatches instructions to execution units

Correct Answer: Option D

Explanation:
Assigns to appropriate functional units.

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