Neco 2018 Computer Studies Question 39

Practice objective / multiple choice question 39 from the 2018 Neco Computer Studies examination.

Neco 2018 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 39 NECO • 2018 • COMPUTER_STUDIES • objective

A computer has a 32‑bit address bus and uses byte‑addressable memory. It employs two cache levels.\n\n- **L1 cache**: size \(64\text{ KB}\), block size \(64\text{ B}\), 4‑way set associative.\n- **L2 cache**: size \(512\text{ KB}\), block size \(128\text{ B}\), 8‑way set associative.\n\nFor each cache, determine (a) the number of index bits and (b) the total number of bits required to store all tag fields (ignore valid and dirty bits). Provide your answers as two separate pairs of numbers.

Answer Options

Correct Answer A. L1: index bits = 8, tag bits = 18432; L2: index bits = 9, tag bits = 65536
B. L1: index bits = 9, tag bits = 17408; L2: index bits = 8, tag bits = 69632
C. L1: index bits = 7, tag bits = 19456; L2: index bits = 10, tag bits = 61440
D. L1: index bits = 8, tag bits = 16384; L2: index bits = 9, tag bits = 57344
Correct Answer
A
Correct Option:
L1: index bits = 8, tag bits = 18432; L2: index bits = 9, tag bits = 65536

About This Question

This is Neco 2018 Computer Studies Question 39. It is one of the objective questions from the 2018 Neco Computer Studies examination.

Difficulty level: Medium .

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