Question 6 Which of the following scheduling policies may exhibit starvation? O Non-preemptive SJF FCFS Round-robin Highest penalty ratio next Question 7 Which of the following scheduling policies is likely the best choice to help optimize system responsiveness for interactive jobs? O Highest penalty ratio next Non-preemptive SJF O Round-robin FCFS Question 8 Which of the following scheduling policies requires the use of a predictive mechanism such as the exponential moving average (EMA)? O Non-preemptive SJF Round-robin FCFS Highest penalty ratio next Question 9 Which statistic is most likely to be used to help identify interactive jobs for scheduling purposes (e.g., as in a MLFQ)? O total process turnaround time O total number of I/O bursts O total CPU execution time average CPU burst length