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Gate1996_2.20.

Four jobs to be executed on a single processor system arrive at time 0+ in the order A, B, C, D. their burst CPU time requirements are 4, 1, 8, 1 time units respectively. The completion time of A under round robin scheduling with time slice of one time unit is
(a) 10
(b) 4
(c) 8
(d) 9

Answer

Answer :-(D)
Exp:-  

  Arrive time Burst
A 0 4
B 1 1
C 2 8
D 3 1

 

A B A C D A C D A

0         1          2          3           4           5           6          7           8         9     

 

I am not complete all gantt chart entry . because of questions asked only Completion time of A.

 

 

 

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