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Assume that  the following jobs are to be executed on a single processor system

Job Id CPU Burst Time
$p$ $4$
$q$ $1$
$r$ $8$
$s$ $1$
$t$ $2$

The jobs are assumed to have arrived at time $0^+$ and in the order $p,q,r,s,t$. Calculate the departure time (completion time) for job $p$ if scheduling is round robin with time slice $1$

1. $4$
2. $10$
3. $11$
4. $12$
5. None of the above
edited | 1.5k views
+1

What does 0indicates here ?

+1

meaning of 0+ and in this question no arrival time is mention so how we apply any algorithms ?
+2
It means all the 5 jobs are available in ready queue at the same time(t = 0),and in the queue, their arrival order is p,q,r,s,t.

whenever the arrival time of 2 or more jobs are same then pick them according to their order in the ready queue.

Execution order: $pqrstprtpr\mathbf{p}rrrrr$
edited by
p will depart at t = 11
edited

Round Robin

TQ=1

Arrival time of all the process is same

 p q r s t p r t p r p 0 1 2 3 4 5 6 7 8 9 10     11

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