题目内容

一个作业8:00到达系统，估计运行时间为1h，若10:00开始执行该作业，其响应比是____。

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The operating system must make _________ types of scheduling decisions with respect to the execution of processes.

A. six
B. five
C. four
D. three

This is a decision whether to add a process to those that are at least partially in main memoryand therefore available for execution:

A. long-term scheduling
B. I/O scheduling
C. short-term scheduling
D. medium-term scheduling

A risk with _________ is the possibility of starvation for longer processes, as long as there is asteady supply of shorter processes.

A. SRT
B. SPN
C. FIFO
D. HRRN

The decision as to which available process will be executed by the processor:

A. long-term scheduling
B. I/O scheduling
C. medium-term scheduling
D. short-term scheduling