Operating System Mcqs

Page No. 3

The only state transition that is initiated by the user process itself is __________


ablock


bwakeup


cdispatch


dnone of the mentioned


View Answer block

The primary distinction between the short term scheduler and the long term scheduler is __________


aThe length of their queues


bThe type of processes they schedule


cThe frequency of their execution


dNone of the mentioned



What is a short-term scheduler?


aIt selects which process has to be brought into the ready queue


bIt selects which process has to be executed next and allocates CPU


cIt selects which process to remove from memory by swapping


dNone of the mentioned



What is a medium-term scheduler?


aIt selects which process has to be brought into the ready queue


bIt selects which process has to be executed next and allocates CPU


cIt selects which process to remove from memory by swapping


dNone of the mentioned



If all processes I/O bound, the ready queue will almost always be ______ and the Short term Scheduler will have a ______ to do.


afull, little


bfull, lot


cempty, little


d empty, lot


View Answer empty, little

What is a long-term scheduler?


aIt selects processes which have to be brought into the ready queue


bIt selects processes which have to be executed next and allocates CPU


cIt selects processes which heave to remove from memory by swapping


dNone of the mentioned



What will happen when a process terminates?


aIt is removed from all queues


bIt is removed from all, but the job queue


cIts process control block is de-allocated


dIts process control block is never de-allocated



When the process issues an I/O request __________


aIt is placed in an I/O queue


bIt is placed in a waiting queue


cIt is placed in the ready queue


dIt is placed in the Job queue



Which of the following do not belong to queues for processes?


aJob Queue


bPCB queue


cDevice Queue


dReady Queue


View Answer PCB queue

To enable a process to wait within the monitor __________


aa condition variable must be declared as condition


bcondition variables must be used as boolean objects


csemaphore must be used


dall of the mentioned



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