OS CPU Scheduling
The strategy of making processes that are logically runnable to be temporarily suspended is called ____________
Non preemptive scheduling
Preemptive scheduling
Shortest job first
First come First served
Preemptive scheduling
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Scheduling is done so as to ____________A. increase CPU utilization
B. decrease CPU utilization
C. keep the CPU more idle
D. none of the mentioned
In multilevel feedback scheduling algorithm ____________
A. a process can move to a different classified ready queue
B. classification of ready queue is permanent
C. processes are not classified into groups
D. none of the mentioned
What is FIFO algorithm?
A. first executes the job that came in last in the queue
B. first executes the job that came in first in the queue
C. first executes the job that needs minimal processor
D. first executes the job that has maximum processor needs
Under multiprogramming, turnaround time for short jobs is usually ________ and that for long jobs is slightly ___________
A. Lengthened; Shortened
B. Shortened; Lengthened
C. Shortened; Shortened
D. Shortened; Unchanged
In the following cases non โ preemptive scheduling occurs?
A. When a process switches from the running state to the ready state
B. When a process goes from the running state to the waiting state
C. When a process switches from the waiting state to the ready state
D. All of the mentioned
Which is the most optimal scheduling algorithm?
A. FCFS โ First come First served
B. SJF โ Shortest Job First
C. RR โ Round Robin
D. None of the mentioned
The interval from the time of submission of a process to the time of completion is termed as ____________
A. waiting time
B. turnaround time
C. response time
D. throughput
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