UNIX管理与开发期末考试试卷(英文版)

南开大学UNIX管理与开发期末试卷1/9南开大学2013——2014年度第二学期《Unix管理与开发》期末考试试卷(考试时间：100分钟总分100分)院（系）软件工程学号姓名分数一．选择正确的答案（每题2分，共20分）1.Thesignsoffilescanberead,write,executearefollowedinturn(A)。A.rwxB.xrwC.rdxD.srwAnswer:A2.Exitinteractiveshell，shouldinput(C)。A.Esc;B.^qC.exitD.quitAnswer:C3.Ifsuperuserrootwasunderthedirectory：/usr/local，afterinputcd，theuserisunderwhichdirectorynow(B)。A./homeB./rootC./home/rootD./usr/localAnswer:B4.Thereisafilenamedfileunderthedirectory:/home/stud1/wang，using(C)canmakeitruninthebackground，thecommandoutputthecontentoffiletofile.copyA.catfile;file.copyB.cat;file.copyC.catfilefile.copy&D.catfilefile.copy&Answer:C5.InUNIXsystem，thesourcefilechangestoexecutablefilethroughcompiling,theexecutablefilebelongsto(B)A.ASCIIfileB.ordinaryfileC.directoryfileD.specialfileAnswer:B6.ThefollowingnarrativeonUNIX,whichisnotcorrect(C)A.UNIXfilesystemisatreestructure,easytomanageandretrieveB.UNIXprovidesawealthofsoftwaretools,suchasutilities,text,anddevelopmenttoolsC.UNIXmanagesordinaryfiles,directories,files,anddevicefilesindifferentwaysD.UNIXisamulti-user,multi-taskingoperatingsystemAnswer:C南开大学UNIX管理与开发期末试卷2/97.IfyouwanttoknowthedetailusageoffindwhichisacommandofUnix,youshouldinput（C）A．helpfindB．findhelpC．manfindD．findmanAnswer:C8.Aboutthecommandcp，whichisincorrect（C）A．cpfile1file2B．cpfile1file2/tmpC．cp–rfile1file2D．cp–r/tmp/mytmpAnswer:C9.Whenwecreateanewfile,ithaspropertiesasfollowed（A）A．ReadableandwritablepropertyB．ReadableexecutablepropertyC．WritableexecutablepropertyD.Read-writeexecutablepropertyAnswer:A10.Ifwewanttochangethetimeofafile,usethecommand（C）A．timeB.DateC.touchD.calAnswer:C11.Aboutthecommandcd,whichisincorrect（D）A．cdBacktodirectorywhenregisteringB．cd/tmpintodirectory/tmpC．cd../intotheupperdirectoryD．cd./intotherootdirectoryAnswer:D12.Whenyoucreateanewdirectoryusingthemkdircommand,theoptionwhenitsparentdirectoriesdonotexisttocreateaparentdirectoryis(D)。A.-mB.-dC.-fD.–pAnswer:D13.Thefollowingstatements,whichisnotbelongtothescopeoftheroleoftheifconfigcommand(D)。A.ConfigurethelocalloopbackaddressB.ConfiguretheIPaddressofthenetworkcardC.ActivatethenetworkadapterD.LoadthecardintothekernelAnswer:D南开大学UNIX管理与开发期末试卷3/914.Therearefourmethodstoassignmentofvariablesintheshell，thenameofname=12is(A)。A.DirectassignmentB.UsereadcommandC.UsingthecommandlineparametersD.Usethecommandoutput15.Answer:A15.Changetheownerofafile,usecommand(C)。A.chmodB.touchC.chownD.catAnswer:C16.howmany“-”willoutputinthefollowingprocedures?(D)#includesys/types.h#includestdio.h#includestdlib.hintmain(){for(inti=0;i2;i++){fork();printf(-);}return0;}A.2B.4C.6D.8Answer:D17.Thefollowingdescriptionoftheerrorthatrespecttothei-nodeis（A）.A.inodeandfileisonetooneB.inodecandescribethenumberofblocksthatoccupiedbythefileC.i-nodedescribesthesizeofthefileandapointerpointingtothedatablocksD.Achievetransformationofthelogicandphysicalstructureofthedocumentbythei-nodeAnswer:A18.Permissionsoftheoutsidemembersofgroupofafileisread-only;theownerhasfullpermissions;permissionswithinthegrouptoreadandwrite,thenthefilepermissionsis(D)A.467B.674C.476D.764Answer:D南开大学UNIX管理与开发期末试卷4/919.Howtodisplaythecurrentdirectory（A）.A.pwdB.cdB.C.whoD.IsAnswer:A20.Whichisthereturnvalueoftheexitcommandinscript,saidthescriptsuccessfully(D)A、1B、-1C、2D、0Answer:D21.whichcommandisusedofChangingPassword（B）A、whoB、passwdC、passwordD、pwdAnswer:B22.Processsynchronizationreferstotherelationshipbetweentheprocessofmutual（B）inlogicA、ConnectionB、restraintC、continueD、CallingAnswer:B24.Howsettheshellscriptexam.shasalluserscanexecute（A）A、chomda+xexam.shB、chomda+wexam.shC、chomda+rexam.shD、chomdu+wexam.shAnswer:A25.Managementandcontrolprocessesby（B）A、InstructionB、PrimitiveC、SemaphoreD、MailcommunicationAnswer:B26.Thecommandusedtochangethenameoffileofdirectoryis（C）A、rmB、cpC、mvD、cdAnswer:C27.TocompileaCprogram,enter(D)incommandprompt.A、cprgnameB、cc–ocprgnameC、ccccprgnameD、cccprgname二．判断题（每题2分，共10分）1.（√）Liketheshell,theoutputthatisgeneratedbyprintand南开大学UNIX管理与开发期末试卷5/9printfcanbedirectedtoafileorpipe.Answer:True2.（√）ItisnotnecessarythattheschedulerallocatesCPUtotheprocess.Answer:True3.（×）Whenencrypted,thecommandcanspecifymultiplefilesasfiles,andthecommandencryptedallthefiles.Answer:False4.（×）UDPprotocolisaconnectionlessprotocol,sothathecanprovidereliabledatatransmission.Answer:False5.（×）Processisacollectionofinstructions.Answer:False三．填空题（每题2分，共10分）1.Thefilesanddirectoriestopackagecommandis____tar___Answer：tar2.Thecommandtoendthebackgroundprocessis__kill__Answer：kill3.Use__diff__commandtocomparethedifferentbetweentwocontentsoffiles.Answer：diff4.__stdin__、__stdout__、_stderr__willbeopenedatthebeginningofthecreationofaLINUXprocesses.Answer：stdin、stdout、stderr5.ListseveralmaindirectoryofUNIX/boot/etc/dev/bin/user/homeAnswer：/boot/etc/dev/bin/user/home6.TheTestcommandcantest__file__,__integer__,__string__.Answer：file、integer、string四．简答题（每题8分，共40分）南开大学UNIX管理与开发期末试卷6/91.IntheUNIXoperatingsystemareclassifiedinthetypesofoperatingsystems?WhatarethemainfeaturesofUNIXsystems?Answer:1．UNIXisamulti-taskingmulti