Consider the following snapshot of a system: Allocation Мах Available АВCD АВCD АВСD Po P1 P2 P3 0012 0012 1520 1000 1750 1354 2356 0632 0652 P4 0014 0656 Answer the following questions using the banker's algorithm: a. What is the content of the matrix Need? b. Is the system in a safe state? find out a safe sequence if it is in safe state. c. If a request from process P1 arrives for (0,4,2,0), can the request be granted immediat ely?

Consider the following snapshot of a system: Allocation Мах Available АВCD АВCD АВСD Po P1 P2 P3 0012 0012 1520 1000 1750 1354 2356 0632 0652 P4 0014 0656 Answer the following questions using the banker's algorithm: a. What is the content of the matrix Need? b. Is the system in a safe state? find out a safe sequence if it is in safe state. c. If a request from process P1 arrives for (0,4,2,0), can the request be granted immediat ely?

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

process
work
need
allocation
finish
2/3
PO
1,5,2,0
0,0,0,0
0,0,1,2
T
P2
1,5,3,2
1,0,0,2
1,3,5,4
P1
2,8,8,6
0,7,5,4
1,0,0,0
T
P3
3,8,8,6
0,0,2,0
0,6,3,2
T
P4
3,14,11,8
0,6,4,2
0,0,1,4
The system is in safe state, and the safe sequence is<p0,p2,p
1,р3,р4>.
c.
request 1= (0,4,2,0),
available=(1,5,2,0)
need1=(0,7,5,0)
step1. request1<=need1
step2. request<=availabel
step3. Pretend allocate.
Availabe=available-request1=(1,1,0,0)
Need1=need1-request13(0,3,0,0)
Allocation1=allocation1+request1=(1,4,2,0)
process
work
need
allocation
finish
1,1,0,0

Consider the following snapshot of a system:
Allocation
Мах
Available
АВCD
АВСD
АВCD
1520
Po
P1
0012
0012
1000
1750
P2
P3
P4
1354
2356
0632
0652
0014
0656
Answer the following questions using the banker's algorithm:
a. What is the content of the matrix Need?
b. Is the system in a safe state? find out a safe sequence if it is in safe state.
c. If a request from process P1 arrives for (0,4,2,0), can the request be granted immediat
ely?
а.
need=max-allocation=
7
5
1
2
2
4
2
b.
bool finish[5]={false, false,false,false,false}
work[4]=available[4]={1,5,2,0}

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