Four jobs to be executed on a single processor system arrive at time 0 in the…
1996
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
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Correct answer: D
Time Window | 0 - 1 | 1 - 2 | 2 - 3 | 3 - 4 | 4 - 5 | 5 - 6 | 6 - 7 | 7 - 8 | 8 - 9 |
Active Job | A | B | C | D | A | C | A | C | A |
Status Event | B ends | D ends | A ends |