操作系统全英文期中考试题-带答案

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1、XX大学2011——2012学年第一学期《操作系统》期中考试试题（A）考试注-Vr.事项考试课程操作系统考试时间120分钟年月日题号—•二三四总分满分20203030得分阅卷教师一、选择(每题1分，共20分)1.Whichfunctiondoestheoperatingsystemcannotcompletedirectlyofthefollowingfouroptions?(b)A.Managingcomputer'sharddriveB.CompiletheprogramC.VirtualmemoryD.Deletefiles2.Consideringthefunctionoftheop

2、eratingsystem,(b)mustgivetimelyresponsefortheexternalrequestwithinthespecifiedtime.A.multiusertimesharingsystemB.real-timeoperatingsystemC.batchoperatingsystemD.networkoperatingsystem3.Aprocesscantransformfromwaitingstatetoreadystaterelyingon(d)A.programmercommandB.systemserviceC.waitingforthenextt

3、imesliceD.wake-upofthe'cooperation'process4.Asweallknow,theprocesscanbethoughtofasaprograminexecution.Wecandealwiththetheproblemabout(b)easierafterimportingtheconceptofprocess.A.exclusiveresourcesB.sharedresourcesC.executinginorderD.easytoexecute2.CPU-schedulingdecisionsmaytakeplaceunderthefollowin

4、gcircumstancesexceptwhichone?(D)A.WhenaprocessswitchesfromtherunningstatetothewaitingstateB.WhenaprocessswitchesfromtherunningstatetothereadystateC・WhenaprocessswitchesfromthewaitingstatetothereadystateD.Whenaprocessswitchesfromthereadystatetothewaitingstate3.InthefourcommonCPUschedulingalgorithm,W

5、hichoneisthebestchoiceforthetime-sharingsystemingeneral?(C)A.FCFSschedulingalgorithmB.PriorityschedulingalgorithmC.Round-robinschedulingalgorithmD.Shortest-job-firstschedulingalgorithm4.IftheinitialvalueofsemaphoreSis2inawait()andsignal()operation,itscurrentvalueis-ljhatmeansthereare(B)processesare

6、waitingoA.OB.lC.2D.35.Generallyspeaking,wecandealwithdeadlockprobleminthreeways.Deadlockpreventionisbasedon(c)A.allocateenoughsystemresourcesB.makeareasonableprocessC.oneofthedestructionofthefournecessaryconditionsD.preventthesystemgointoastateofinsecurity.9.Intheoperatingsystem,wait()andsignal()op

7、erationisakindof(d)A.machineinstructionB.systemcallsC.jobcontrolscommandDJow-levelprocesscommunicationprimitiveslO.Inthejobschedulingalgorithms,ifalljobscomeatthesametime,whichalgorithmhastheshortestaverage