[操作系统] 错题本！～一起来学习吧～

Which of following activities is not what an operating system concerns?

Which of the following system is a multi-user time-sharing system?

Operating system is a set of software for managing ______________.

When a process is waken up, it means that ______ .

Consider the following code segment:

pid_t pid;

pid = fork();

if (pid == 0) { /* child process */

fork();

thread_create( . . .);

}

fork();

a. How many unique processes are created?  （包括第一次运行改程序的进程） [x171]

b. How many unique threads are created?  （没有主线程）  [x172]

下列选项中，满足短任务优先且不会发生饥饿现象的调度算法是 ？

下列进程调度算法中，综合考虑进程等待时间和执行时间的是？(