Consider the following page reference string: 1, 2, 1, 3, 2, 4, 5, 1, 4, 3, 5, 2, 1, 2, 4, 3, 5 What are the hit ratios for optimal replacement algorithm assuming 3 and 4 frames? Answer Choices: e. 0.5 and 0.6 f. 0.6 and 0.7 g. 0.5 and 0.7 h. 0.4 and 0.5

Consider the following page reference string: 1, 2, 1, 3, 2, 4, 5, 1, 4, 3, 5, 2, 1, 2, 4, 3, 5 What are the hit ratios for optimal replacement algorithm assuming 3 and 4 frames? Answer Choices: e. 0.5 and 0.6 f. 0.6 and 0.7 g. 0.5 and 0.7 h. 0.4 and 0.5

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Consider the following page reference string: 1, 2, 1, 3, 2, 4, 5, 1, 4, 3, 5, 2, 1, 2, 4, 3, 5
What are the hit ratios for optimal replacement algorithm assuming 3 and 4 frames?
Answer Choices:
e. 0.5 and 0.6
f. 0.6 and 0.7
g. 0.5 and 0.7
h. 0.4 and 0.5

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