Operating System

e) Consider the following set of processes Table 1: Process Scheduling Process Arrival Time Service Time A 0 2 B 2 6 5 3 D 6 5 E 8 4 Based on Table 1, calculate the mean turnaround time of the processes using the following scheduling policy and identify the best policy: i) Round Robin (t=2). ii) SPN (Shortest Process Next) iii) SRT (Shortest Remaining Time)