Consider the following string of page references 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2. There are only 3 frames. Complete a figure similar to Figure 8.14, showing the frame allocation for: A. FIFO (first-in-first-out) B. LRU (least recently used) C. Clock D. Optimal (assume the page reference string continues with 1, 2, 0, 1, 7, 0, 1)

Consider the following string of page references 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2. There are only 3 frames. Complete a figure similar to Figure 8.14, showing the frame allocation for: A. FIFO (first-in-first-out) B. LRU (least recently used) C. Clock D. Optimal (assume the page reference string continues with 1, 2, 0, 1, 7, 0, 1)

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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Concept explainers

Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.

Question

Consider the following string of page references 7, 0, 1, 2, 0, 3, 0, 4, 2, 3, 0, 3, 2.
There are only 3 frames.
Complete a figure similar to Figure 8.14, showing the frame allocation for:
A. FIFO (first-in-first-out)
B. LRU (least recently used)
C. Clock
D. Optimal (assume the page reference string continues with 1, 2, 0, 1, 7, 0, 1)
List the total number of page faults for each policy. Count page faults only after all frames have been
initialized.

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Step 1: a. FIFO ( first in first out )

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