计算机科学概论习题与答案.docVIP

Chapter 3. Operating Systems Multiple Choice Questions 1. Which of the following components of an operating system maintains the directory system A. Device drivers B. File manager C. Memory manager ANSWER:? B 2. Which of the following components of an operating system handles the details associated with particular peripheral equipment? 下列哪个组件的一个操作系统处理与特定的外围设备相关联的细节吗 A. Device drivers?设备驱动程序 B. File manager C. Memory manager ANSWER:? A 3. Which of the following components of an operating system is not part of the kernel A. Shell B. File manager C. Scheduler调度器 ANSWER:? A 4. Multitasking in a computer with only one CPU is accomplished by a technique called????. 多任务在计算机只有一个CPU通过一种技术被称为 A. Bootstrapping?自助法 B. Batch processing?成批处理 C. Multiprogramming多道程序设计 ANSWER:? C 5. Execution of an operating system is initiated by a program called the????. A. Window manager B. Scheduler C. Bootstrap引导程序 ANSWER:? C 6. The end of a time slice is indicted by the occurrence of a signal called????. 时间片结束时发生的一个信号 A. An interrupt B. A semaphore?一个信号量 C. A login一个登录 ANSWER:? A 7. A set of instructions that should be executed by only one process at a time is called????. 一组指令,应执行一次只有一个进程 A. Utility?实用 B. Critical region临界区 C. Privileged instruction特权指令 ANSWER: B 8. Which of the following is not an attempt to provide security A. Passwords密码 B. Privilege instructions C. Multitasking多重任务处理 ANSWER: C 9. Which of the following events is harmful to an operating system’s performance A. Deadlock B. Interrupt C. Booting引导 启动 ANSWER: A 10. Which of the following is a technique for controlling access to a critical region? 下列哪个技术控制访问临界区 A. Spooling?假脱机 B. Time sharing C. Semaphore?信号；旗语 D. Booting ANSWER: C 11. Which of the following is not involved in a process switch A. Interrupt B. Process table C. Dispatcher调度程序 D. Shell ANSWER: D 12. Which of the following is a task that is not performed by the kernel of an operating system? 下列哪个是一个任务,并不是由一个操作系统的内核 A. Communicate with the user B. Schedule processes