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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
Consider the following table about processes, their burst time and arrival time
Now, which process finishes second last in the Gantt chart for:
non-preemptive SJF, and
Round Robin (time quantum = 10)?
| Process | Burst Time | Arrival Time |
|---|---|---|
| P1 | 9 | 0 |
| P2 | 30 | 0 |
| P3 | 4 | 0 |
| P4 | 8 | 2 |
| P5 | 11 | 6 |
Solution
| Scheduling | Execution order (finish times) | Second last finisher |
|---|---|---|
| Non-preemptive SJF | P3(0–4) → P4(4–12) → P1(12–21) → P5(21–32) → P2(32–62) | P5 |
| Round Robin, q=10 | P1(0–9, finishes) → P2(9–19) → P3(19–23, finishes) → P4(23–31, finishes) → P5(31–41) → P2(41–51) → P5(51–52, finishes) → P2(52–62, finishes) | P5 |
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