Consider the 3 processes, P1, P2 and P3 shown in the table.The completion order of the 3 processes under the policies FCFS and RR2 (round robin schedulingwith CPU quantum of 2 time units) area)FCFS: P1, P2, P3 RR2: P1, P2, P3b)FCFS: P1, P3, P2 RR2: P1, P3, P2c)FCFS: P1, P2, P3 RR2: P1, P3, P2d)FCFS: P1, P3, P2 RR2: P1, P2, P3Correct answer is option 'C'. Can you explain this answer?

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Consider the 3 processes, P1, P2 and P3 shown in the table.

The completion order of the 3 processes under the policies FCFS and RR2 (round robin scheduling
with CPU quantum of 2 time units) are

a)
FCFS: P1, P2, P3 RR2: P1, P2, P3
b)
FCFS: P1, P3, P2 RR2: P1, P3, P2
c)
FCFS: P1, P2, P3 RR2: P1, P3, P2
d)
FCFS: P1, P3, P2 RR2: P1, P2, P3

Correct answer is option 'C'. Can you explain this answer?

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Consider the 3 processes, P1, P2 and P3 shown in the table.The complet...

For FCFS Execution order will be order of Arrival time so it is P1,P2,P3
Next For RR with time quantum=2,the arrangement of Ready Queue will be as follows:
RQ: P1,P2,P1,P3,P2,P1,P3,P2
This RQ itself shows the order of execution on CPU(Using Gantt Chart) and here it gives the completion order as P1,P3,P2 in Round Robin algorithm.

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Consider the 3 processes, P1, P2 and P3 shown in the table.The completion order of the 3 processes under the policies FCFS and RR2 (round robin schedulingwith CPU quantum of 2 time units) area)FCFS: P1, P2, P3 RR2: P1, P2, P3b)FCFS: P1, P3, P2 RR2: P1, P3, P2c)FCFS: P1, P2, P3 RR2: P1, P3, P2d)FCFS: P1, P3, P2 RR2: P1, P2, P3Correct answer is option 'C'. Can you explain this answer?

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