题目内容

A disk scheduling mechanism in an operating system causes the disk arm to sweepbackand forth across the disk Surface servicing all requests in its path. This is a(73).

A. First Come First Serve
B. Shortest Seek Time First
C. Scan
D. None of the above

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When a string constant is written in C program, the compiler creates(75)of characters containing the characters of the string, and terminating it with "\O".

A. a group
B. an array
C. a stack
D. a series

软件的易维护性是指理解、改正、改进软件的难易度。通常影响软件易维护性的因素有易理解性、易修改性和(59)。

A. 易使用性
B. 易恢复性
C. 易替换性
D. 易测试性

A．serviceB．servantC．servantsD．services

A. service
B. servant
C. servants
D. services

不是手机平台的嵌入式操作系统。

A. Palm OS
B. Linux
C. Symbian
D. Solaris