Operating System Mcqs

Page No. 10

What is Turnaround time?


athe total waiting time for a process to finish execution

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bthe total time spent in the ready queue

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cthe total time spent in the running queue

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dthe total time from the completion till the submission of a process View Answer

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Scheduling is done so as to ____________


aincrease CPU utilization

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bdecrease CPU utilization

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ckeep the CPU more idle

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dnone of the mentioned

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What is Dispatch latency?


athe speed of dispatching a process from running to the ready state

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bthe time of dispatching a process from running to ready state and keeping the CPU idle

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cthe time to stop one process and start running another one

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dnone of the mentioned

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The switching of the CPU from one process or thread to another is called ____________


aprocess switch

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btask switch

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ccontext switch

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dall of the mentioned

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View Answer all of the mentioned

In the following cases non – preemptive scheduling occurs?


aWhen a process switches from the running state to the ready state

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bWhen a process goes from the running state to the waiting state

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cWhen a process switches from the waiting state to the ready state

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dAll of the mentioned View Answer

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A process is selected from the ______ queue by the ________ scheduler, to be executed.


ablocked, short term

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bwait, long term

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cready, short term

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dready, long term

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View Answer ready, short term

An I/O bound program will typically have ____________


aa few very short CPU bursts

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bmany very short I/O bursts

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cmany very short CPU bursts

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da few very short I/O bursts

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What are the two steps of a process execution?


aI/O & OS Burst

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bCPU & I/O Burst

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cMemory & I/O Burst

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dOS & Memory Burst

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View Answer CPU & I/O Burst

With multiprogramming ______ is used productively.


atime

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bspace

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cmoney

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dall of the mentioned

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View Answer time

CPU scheduling is the basis of ___________


amultiprocessor systems

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bmultiprogramming operating systems

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clarger memory sized systems

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dnone of the mentioned

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