Operating System Mcqs

Page No. 10

What is Turnaround time?


athe total waiting time for a process to finish execution


bthe total time spent in the ready queue


cthe total time spent in the running queue


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



Scheduling is done so as to ____________


aincrease CPU utilization


bdecrease CPU utilization


ckeep the CPU more idle


dnone of the mentioned



What is Dispatch latency?


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


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


cthe time to stop one process and start running another one


dnone of the mentioned



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


aprocess switch


btask switch


ccontext switch


dall of the mentioned


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


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


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


dAll of the mentioned View Answer



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


ablocked, short term


bwait, long term


cready, short term


dready, long term


View Answer ready, short term

An I/O bound program will typically have ____________


aa few very short CPU bursts


bmany very short I/O bursts


cmany very short CPU bursts


da few very short I/O bursts



What are the two steps of a process execution?


aI/O & OS Burst


bCPU & I/O Burst


cMemory & I/O Burst


dOS & Memory Burst


View Answer CPU & I/O Burst

With multiprogramming ______ is used productively.


atime


bspace


cmoney


dall of the mentioned


View Answer time

CPU scheduling is the basis of ___________


amultiprocessor systems


bmultiprogramming operating systems


clarger memory sized systems


dnone of the mentioned



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