Q1-Given the following set of processes and the length of the CPU burst given in milliseconds, show how these processes are scheduled according to Round Robin scheduling. Use a time quantum of 2 milliseconds.

Process	Burst Time (ms)
P1	5
P2	4
P3	2
P4	3

a- Draw the Gantt-chart for the scheduling algorithm. Inside each box, write the name of the process and specify the start and end of each scheduled time below.

b- Calculate the average waiting time?

c- Which process has the longest waiting time?