题目内容

CPU scheduling is the basis of ___________

A. multiprocessor systems
B. multiprogramming operating systems
C. larger memory sized systems
D. none of the mentioned

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With multiprogramming ______ is used productively

A. time
B. space
C. money
D. all of the mentioned

What are the two steps of a process execution?

A. I/O & OS Burst
B. CPU & I/O Burst
C. Memory & I/O Burst
D. OS & Memory Burst

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

A. blocked, short term
B. wait, long term
C. ready, short term
D. ready, long term

In the following cases non – 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

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