1 5 2 0 sequence process allocation claim needs available P0 0 0 1 2 0 0 1 3 P1
ID: 3538284 • Letter: 1
Question
1 5 2 0
sequence process allocation claim needs available
P0
0 0 1 2
0 0 1 3
P1
1 0 0 0
1 9 5 0
P2
1 3 5 3
2 3 5 6
P3
0 0 3 2
0 5 5 2
P4
0 1 1 4
0 7 5 6
A) Fill in the needs column above
.
B) Is the system in a safe state ?__________________________________________
C) Show a sequence ( if above is yes) _______________________________________
A request from Process P1 arrives for (0, 4, 2, 0)
D) Should the request be granted? ____________
sequence process allocation claim needs available
P0
0 0 1 3
P1
1 9 5 0
P2
2 3 5 6
P3
0 5 5 2
P4
0 7 5 6
(Use to calculate part D)
P0
0 0 1 2
0 0 1 3
P1
1 0 0 0
1 9 5 0
P2
1 3 5 3
2 3 5 6
P3
0 0 3 2
0 5 5 2
P4
0 1 1 4
0 7 5 6
Explanation / Answer
https://www.dropbox.com/s/wnc6nw3oi0s3l3b/27062013475.jpg
https://www.dropbox.com/s/ili78obqtwj8v39/27062013476.jpg
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