题目内容

Choose one of the disadvantages of the priority scheduling algorithm?

A. it schedules in a very complex manner
B. its scheduling takes up a lot of time
C. it can lead to some low priority process waiting indefinitely for the CPU
D. none of the mentioned

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What is ‘Aging’?

A. keeping track of cache contents
B. keeping track of what pages are currently residing in memory
C. keeping track of how many times a given page is referenced
D. increasing the priority of jobs to ensure termination in a finite time

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A solution to the problem of indefinite blockage of low – priority processes is ____________

A. Starvation
B. Wait queue
C. Ready queue
D. Aging

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Under nonpreemptive scheduling, once the CPU has allocated to a process, the process keeps the CPU until1.It releases the CPU by terminating2.It releases the CPU by switching to the waiting state3.It releases the CPU by switching to the ready state4.It releases the CPU by switching to the running state

A. 1 and 2
B. 1,2,3
C. 2,3,4
D. 1,2,3,4

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Which of the following scheduling algorithms gives minimum average waiting time?

A. FCFS
B. SJF
C. Round – robin
D. Priority

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Choose one of the disadvantages of the priority scheduling algorithm?

A. it schedules in a very complex manner B. its scheduling takes up a lot of time C. it can lead to some low priority process waiting indefinitely for the CPU D. none of the mentioned

What is ‘Aging’?

A solution to the problem of indefinite blockage of low – priority processes is ____________

Which of the following scheduling algorithms gives minimum average waiting time?

A. it schedules in a very complex manner
B. its scheduling takes up a lot of time
C. it can lead to some low priority process waiting indefinitely for the CPU
D. none of the mentioned