Q.1)Consider a system with 6 processes P1, P2, P3, P4, P5 and P6 who are requesting 4 resource types – A, B,C and D at the same time. The following snapshot of the system has been given at the moment.Process Maximum Allocation AvailableA B C D A B C D A B C DP1 4 2 1 2 2 0 0 1 3 3 2 1P2 5 2 5 2 3 1 2 1P3 2 3 1 6 2 1 0 3P4 1 4 2 4 1 3 1 2P5 3 6 6 5 1 4 3 2P6 4 2 3 5 1 0 2 2A) Compute the Need Matrix for the above data. (4 points)B)Is the system in a safe state? Why? If yes, show the safe sequence. Kindly show each and every step ofyour solution. (8 points)C)Now, if a request from process P2 arrives for (1,1,0,1), should the request be granted immediately? Whyor Why not? Kindly show each and every step of your solution. (8 points)

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Q.1)
Consider a system with 6 processes P1, P2, P3, P4, P5 and P6 who are requesting 4 resource types – A, B,
C and D at the same time. The following snapshot of the system has been given at the moment.
Process Maximum Allocation Available
A B C D A B C D A B C D
P1 4 2 1 2 2 0 0 1 3 3 2 1
P2 5 2 5 2 3 1 2 1
P3 2 3 1 6 2 1 0 3
P4 1 4 2 4 1 3 1 2
P5 3 6 6 5 1 4 3 2
P6 4 2 3 5 1 0 2 2
A) Compute the Need Matrix for the above data. (4 points)
B)
Is the system in a safe state? Why? If yes, show the safe sequence. Kindly show each and every step of
your solution. (8 points)
C)
Now, if a request from process P2 arrives for (1,1,0,1), should the request be granted immediately? Why
or Why not? Kindly show each and every step of your solution. (8 points)
 

 

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