A process arrives at time 3 ms and completes at time 12 ms. If its CPU burst time is 5 ms, what are its turnaround time and total waiting time, respectively?

Options

  • A. 9 ms and 4 ms
  • B. 12 ms and 7 ms
  • C. 5 ms and 9 ms
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. 9 ms and 4 ms

Detailed Explanation

Explanation: Turnaround Time = Completion Time − Arrival Time = 12 − 3 = 9 ms. Waiting Time = Turnaround Time − Burst Time = 9 − 5 = 4 ms. Therefore, the answer is 9 ms and 4 ms.