Question 21 : Round robin scheduling falls under the category of :
1. Non preemptive scheduling
2. Preemptive scheduling
3. All of the mentioned
4. None of the mentioned
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Question 22 : Response time is :
1. the total time taken from the submission time till the completion time
2. the total time taken from the submission time till the first response is produced
3. the total time taken from submission time till the response is output
4. none of the mentioned
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Question 23 : Waiting time is :
1. the total time in the blocked and waiting queues
2. the total time spent in the ready queue
3. the total time spent in the running queue
4. the total time from the completion till the submission of a process
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Question 24 : Turnaround time is :
1. the total waiting time for a process to finish execution
2. the total time spent in the ready queue
3. the total time spent in the running queue
4. the total time from the completion till the submission of a process
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Question 25 : Scheduling is done so as to :
1. increase CPU utilization
2. decrease CPU utilization
3. keep the CPU more idle
4. None of the mentioned
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Question 26 : Dispatch latency is :
1. the speed of dispatching a process from running to the ready state
2. the time of dispatching a process from running to ready state and keeping the CPU idle
3. the time to stop one process and start running another one
4. none of the mentioned
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Question 27 : The switching of the CPU from one process or thread to another is called :
1. process switch
2. task switch
3. context switch
4. all of the mentioned
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Question 28 : In the following cases non – preemptive scheduling occurs :
1. When a process switches from the running state to the ready state
2. When a process goes from the running state to the waiting state
3. When a process switches from the waiting state to the ready state
4. All of the mentioned
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Question 29 : A process is selected from the ______ queue by the ________ scheduler, to be executed.
1. blocked, short term
2. wait, long term
3. ready, short term
4. ready, long term
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Question 30 : An I/O bound program will typically have :
1. a few very short CPU bursts
2. many very short I/O bursts
3. many very short CPU bursts
4. a few very short I/O bursts
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