Question

The Instruction fetch phase ends with _________

(a) Placing the data from the address in MAR into MDR

(b) Placing the address of the data into MAR

(c) Completing the execution of the data and placing its storage address into MAR

(d) Decoding the data in MDR and placing it in IR

I have been asked this question during an interview.

This key question is from Instructions and Instruction Sequencing in division Machine Instructions and Programs of Computer Architecture

Answer 1

Correct answer is (d) Decoding the data in MDR and placing it in IR

Best explanation: The fetch ends with the instruction getting decoded and being placed in the IR and the PC getting incremented.