Test03(选择题)

Test BankChapter Three (Operating Systems)Multiple Choice Questions1. Which of the following components of an operating system maintains the directory system?A. Device driversB. File managerC. Memory managerANSWER: B2. Which of the following components of an operating system handles the details associated with particular peripheral equipment?A. Device driversB. File managerC. Memory managerANSWER: A3. Which of the following components of an operating system is not part of the kernel?A. ShellB. File managerC. SchedulerANSWER: A4. Multitasking in a computer with only one CPU is accomplished by a technique calledA. BootstrappingB. Batch processingC. MultiprogrammingANSWER: C5. Execution of an operating system is initiated by a program called theA. Window managerB. SchedulerC. BootstrapANSWER: C6. The end of a time slice is indicted by the occurrence of a signal calledA. An interruptB. A semaphoreC. A loginANSWER: A7. A section of a program that should be executed by at most one process at a time is called aA. UtilityB. Critical regionC. Privileged instructionANSWER: B8. Which of the following is not an attempt to provide security?A. PasswordsB. Privilege levelsC. MultitaskingANSWER: C9. Which of the following items of information would not be contained in an operating systems process table?A. The location of the memory area assigned to the processB. The priority of each processC. Whether the process is ready or waitingD. The machine language instructions being executed by the processANSWER: D10. Which of the following events is detrimental to an operating systems performance?A. DeadlockB. InterruptC. BootingANSWER: A11. Which of the following is a technique for controlling access to a critical region?A. SpoolingB. Time sharingC. SemaphoreD. BootingANSWER: C12. Which of the following is not involved in a context switch?A. InterruptB. Process tableC. DispatcherD. ShellANSWER: D13. Which of the following concepts is not associated with critical regions?A. SemaphoresB. Mutual exclusionC. BootstrapANSWER: C14. Which of the following is not a role of a typical operating system?A. Control the allocation of the machines resourcesB. Control access to the machineC. Maintain records regarding files stored in mass storageD. Assist the computer user in the task of processing digital photographsANSWER: D15. Which of the following is a task that is not performed by the kernel of an operating system?A. Communicate with the userB. Schedule processesC. Allocate resourcesD. Avoid deadlockANSWER: A16. Which of the following is not a means of performing multiple activities at the same time?A. PipelingB. MultiprogrammingC. Virtual memoryD. Multiple processorsANSWER: C (Caution: This problem uses terminology from Chapter 1.)17. Which of the following components of an operating system is executed as the result of an interrupt signal?A. DispatcherB. Memory managerC. File managerANSWER: A18. Which of the following would be a concern of the file manager in a multi-user computer system that would not be a concern in a single-user system?A. Maintain records regarding the location of filesB. Maintain records regarding the ownership of filesC. Maintain records regarding the size of filesD. None of the above ANSWER: B19. Which of the following would not require real-time processing?A. Typing a document with a word processorB. Navigation of an aircraftC. Forecasting word-wide trade for the next five year periodD. Maintaining a airline reservation systemANSWER: C20. Which of the following statements is true?A. Allowing several processes to share time in a multiprogramming