Gce Model Questions Vol1 2017 Computer Studies Question 49

Practice objective / multiple choice question 49 from the 2017 Gce Model Questions Vol1 Computer Studies examination.

Gce Model Questions Vol1 2017 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 49 GCE_MODEL_QUESTIONS_VOL1 • 2017 • COMPUTER_STUDIES • objective

A processor runs at a clock rate of 2.5 GHz. Its instruction mix consists of three classes: Class A makes up 30 % of the instructions and has a CPI of 1, Class B makes up 50 % with a CPI of 2, and Class C makes up 20 % with a CPI of 3.\n\n(a) Compute the average CPI for the processor.\n(b) Using this average CPI, determine the instruction throughput (instructions per second).\n(c) How long, in seconds, will it take to execute a program containing 1.2 × 10⁹ instructions?

Answer Options

A. Average CPI = 1.8; Throughput ≈ 1.39×10⁹ instr\/s; Execution time ≈ 0.86 s
B. Average CPI = 2.0; Throughput ≈ 1.25×10⁹ instr\/s; Execution time ≈ 0.96 s
C. Average CPI = 2.1; Throughput ≈ 1.19×10⁹ instr\/s; Execution time ≈ 1.01 s
Correct Answer D. Average CPI = 1.9; Throughput ≈ 1.32×10⁹ instr/s; Execution time ≈ 0.91 s
Correct Answer
D
Correct Option:
Average CPI = 1.9; Throughput ≈ 1.32×10⁹ instr/s; Execution time ≈ 0.91 s

About This Question

This is Gce Model Questions Vol1 2017 Computer Studies Question 49. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Computer Studies examination.

Difficulty level: Medium .

View More Gce Model Questions Vol1 2017 Computer Studies Questions More Gce Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support