The processes are executed in the following manner in a system with Round Robin scheduling. a. The process is scheduled to execute until the end of the current CPU burst then process is put back into the ready queue. b. The process is executed for a pre-defined time quantum then the process is preempted and put back into the ready queue. c. The process coming first is executed first without preemption till its completion d. The process having the smallest burst time is executed first.