5. Consider the following snapshot of a system: Allocation Max Available ABCDABC DABCD PO 3 0 1 1 4 1 1 1 1 0 20 P10 10 0 0 212 P2 1 11 0 4210 P3 1 1 0 1 1 1 1 1 P40 000 2120 Answer the following questions using the banker's algorithm: a) What is the content of the matrix Need? Show your work. b) Is the system in a safe state? Remember that you must find a safe sequence in order to answer this question. Show your work. c) If a request from process P4 arrives for 0,0,2,0), can the request be granted immediately? Show your work. Note that you must apply the whole Banker's algorithm here.
5. Consider the following snapshot of a system: Allocation Max Available ABCDABC DABCD PO 3 0 1 1 4 1 1 1 1 0 20 P10 10 0 0 212 P2 1 11 0 4210 P3 1 1 0 1 1 1 1 1 P40 000 2120 Answer the following questions using the banker's algorithm: a) What is the content of the matrix Need? Show your work. b) Is the system in a safe state? Remember that you must find a safe sequence in order to answer this question. Show your work. c) If a request from process P4 arrives for 0,0,2,0), can the request be granted immediately? Show your work. Note that you must apply the whole Banker's algorithm here.
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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Transcribed Image Text:5. Consider the following snapshot of a system:
Allocation Max
Available
ABCDABC DAB CD
PO 3 0 1 1 4 1 1 1 1 0 20
P1 0 1 0 0 0 2 12
P2 1 1 1 0 4 2 10
P3 1 1 0 1 1 1 1 1
P4 0 0 0 0 2 120
Answer the following questions using the banker's algorithm:
a) What is the content of the matrix Need? Show your work.
b) Is the system in a safe state? Remember that you must find a safe sequence in order to answer
this question. Show your work.
c) If a request from process P4 arrives for (0,0,2,0), can the request be granted immediately?
Show your work. Note that you must apply the whole Banker's algorithm here.
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