For each of the following page replacement policies, list the total number of page faults and fill in the contents ofthe page frames of memory after each memory reference. For clock, also write the values of the reference bits, and put a star in the frame where the clock hand currentlypointsPhysical memory has three pages (1, 2, 3) and data pages requested are identified by letters (A, B, C...). Thecomputer has just booted up and user process memory is emptyIn this problem, time moves from left to right. (In class, we sometimes drew time from the top down.)(a) LRU (Time 0 >-> -> Time Infinity)Page requested:тOВЕOR.NOтOВPage 1Page 2Page 3Mark X ifa fault occurs:(b) FIFO (Time 0 > ->-+ Time Infinity)Page requested:OВEOR.OВOPage 1Page 2Page 3Mark X ifa fault occurs:EH

Answered: For clock, also write the values of the…

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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For each of the following page replacement policies, list the total number of page faults and fill in the contents ofthe page frames of memory after each memory reference.

For clock, also write the values of the reference bits, and put a star in the frame where the clock hand currently
points
Physical memory has three pages (1, 2, 3) and data pages requested are identified by letters (A, B, C...). The
computer has just booted up and user process memory is empty
In this problem, time moves from left to right. (In class, we sometimes drew time from the top down.)
(a) LRU (Time 0 >-> -> Time Infinity)
Page requested:
т
O
В
Е
O
R.
N
O
т
O
В
Page 1
Page 2
Page 3
Mark X if
a fault occurs:
(b) FIFO (Time 0 > ->-+ Time Infinity)
Page requested:
O
В
E
O
R.
O
В
O
Page 1
Page 2
Page 3
Mark X if
a fault occurs:
EH

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