(a) Verify that the Available array has been calculated correctly. (b) Calculate the Need matrix. (c) Show that the current state is safe, that is, show a safe sequence of processes. In addition, to the sequence show how the Available (working array) changes as each process terminates. (d) Given the request (3,2,3,3) from Process P5. Should this request be granted? Why or why not?
(a) Verify that the Available array has been calculated correctly. (b) Calculate the Need matrix. (c) Show that the current state is safe, that is, show a safe sequence of processes. In addition, to the sequence show how the Available (working array) changes as each process terminates. (d) Given the request (3,2,3,3) from Process P5. Should this request be granted? Why or why not?
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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Based on the picture attached, please answer the following questions, thank you in advance.
(a) Verify that the Available array has been calculated correctly.
(b) Calculate the Need matrix.
(c) Show that the current state is safe, that is, show a safe sequence of processes. In
addition, to the sequence show how the Available (working array) changes as each
process terminates.
(d) Given the request (3,2,3,3) from Process P5. Should this request be granted? Why or
why not?
Transcribed Image Text:Given the following state for the Banker's Algorithm.
6 processes PO through P5
4 resource types: A (15 instances); B (6 instances)
C (9 instances); D (10 instances)
Snapshot at time TO:
Process
PO
P1
P2
P3
P4
P5
204LL
A
6
1
1
OLLOIO
Current allocation
A B
C
D A
2
1
9
1 1 1
2
0
2
7 5
0
1
3
3
0
0
5 2
1
1
4
4
0
1
1 0
1
B
3
0
Available
с
5
D
4
Maximum demand
B
5
2 3
4
3
2
4
C
D
5 5
3
4
2
1
4
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