Question

Arrange the steps of classic 4-stage instruction pipelining: A. Execute B. Fetch C. Write-back D. Decode

• A. B, D, A, C
• B. B, A, C, D
• C. D, B, A, C
• D. D, B, C, A

Hint:

Pipeline: Fetch → Decode → Execute → Write-back.

Answer 1

The Correct Option is A

Concept: Instruction pipeline stages:
• Fetch
• Decode
• Execute
• Write-back

Step 1: Arrange \[ B \rightarrow D \rightarrow A \rightarrow C \] \[ \therefore \text{Correct answer is (A)} \]