RHCSARHCE考前准备.docx

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1、Rhcsarhce考前打算RHCSACertification:RHCSExamObjectivesOverviewThisguideprovidesinformationcandidatesmayuseinpreparingtotaketheRedHatCertifiedSystem.Administrator(RHCSA)examonRedHatEnterprise1.inux6.CandidatestakingtheKedHatCertifiedTechnician(RHCT)examonRedHatEnterprise1.inux5shouldconsultthepastRHCT/RH

2、CEExamobjectiveslinkedabove.RedHatisnotresponsibleforthecontentoraccuracyofotherguides,books,onlineresources,oranyotherinformationprovidedbyorganizationsorindividualsotherthanRedHatTrainingandCertification.RedHatreservestherighttochangethisguidewhenappropriate.Candidateswhohaveenrolledinforthcomingc

3、lassesorexamsareadvisedtocheckthisguideperiodicalIyforchanges.ProspectiveemployersofRHCEsshouldverifyanyandallclaimsbypeopleclaimingtoholdthiscertificationbyrequestingtheircertificatenumberandverifyingithere.Performance-basedExamsTheRHCSAexamisaperformance-basedevaluationofRedHatEnterprise1.inuxsyst

4、emadministrationskillsandknowledge.Candidatesperformanumberofroutinesystemadministrationtasksandareevaluatedonwhethertheyhavemetspecificobjectivecriteria.Performance-basedtestingmeansthatcandidatesmustperformtaskssimiIartowhattheymustperformonthejob.AuthorizedTrainingPartnersOnlyRedHatandRedHatCerti

5、fiedTrainingPartnersadministertheRHCSexam.Prospectivecandidatesshouldexerciseduedi1igencewhenpurchasingaseatinanRHCSAexamfromaproviderotherthanRedHatitself.Theyshouldverifythattheprovideris,infact,anauthorizedtrainingpartnerorreselleringoodstanding.Pleasenotifygreymarketredhataboutorganizationsthatp

6、urporttooffertheRHCSAexambutarenotRedHatCertifiedTrainingPartners.ScoresandReportingOfficialscoresfortheRHCSAexamscomeexclusivelyfromRedHatCertificationCentral.RedHatdoesnotauthorizeexaminers,trainingpartnersorotherdepartmentsorindividualswithinRedHattoreportresultstocandidates.Scoresontheexamarerep

7、ortedwithinthree(3)USbusinessdays.RedHatdoesnotreportperformanceonindividualitems,norwillitprovideadditionalinformationuponrequest.Thispolicyhelpsensureimpartialityandfairnessforallcandidatesworldwide.Scoresareusedtoestablishwhethercertificationshouldbeissuedandarereportedforthebenefitofcandidates.R

8、edHatmakesnorepresentationsregardingtheuseofscoresforanyotherpurpose,suchasrankingorcomparingcandidates.FormatoftheRHCSAExamTheRHCSAexamisahands-on,practicalexamthatlasts2.5hours.Internetaccessisnotprovidedduringtheexam.Outsidematerialsarenotpermitted.DocumentationthatshipswithRedHatEnterprise1.inux

9、isavailableduringtheexam.RedHatreservestherighttomakechangestoformat,includingtimingandthepoliciesabove.Suchchangeswi11bemadepublicinadvancethroughrevisionstothisdocument.PreparationfortheRHCSExamRedHatencouragesal1candidatesforRHCSAtoconsidertakingoneormoreofitsofficialtrainingcoursestohelpprepare.

10、Attendanceintheseclassesisnotrequired,andonecanchoosetotakejustanexam.Manysuccessfulcandidateswhohavecometoclassalreadypossessingsubstantialskillsandknowledgereportthattheclassmadeapositivedifferenceforthem.Tohelpyoudeterminethebestcoursestotake,RedHatprovidesonlineskillsassessment.WhileattendingRed

11、Hat,sclassescanbeanimportantpartofone,spreparation,attendingclassdoesnotguaranteesuccessontheexam.Previousexperience,practice,andnativeaptitudearcalsoimportantdeterminantsofsuccess.ManybooksandotherresourcesonsystemadministrationforRedHat,Sproductsareavai!able.RedHatdoesnotendorseanyaspreparationgui

12、desforanyexams.Nevertheless,candidatesmayfindadditionareadingdeepensunderstandingandcanprovehelpful.ExamObjectivesRedHatreservestherighttoadd,modifyandremoveobjectives.Suchchangeswillbemadepublicinadvancethroughrevisionstothisdocument.RHCSAexamcandidatesshouldbeabletoaccomplishthetasksbelowwithoutas

13、sistance.Thesehavebeengroupedintoseveralcategories.UnderstandandUseEssentialToolsAccessashellpromptandissuecommandswithcorrectsyntax（能够运用正确的语法在提示符下运用吩咐）USCinput-outputredirection（,2,etc.）（运用I/O重定向，例如，1,2）Usegrepandregularexpressionstoanalyzetext（运用grep和正则表达式分析文本）AccessremotesystemsusingsshandVNC（运用s

14、sh和VNC访问远程系统）1.oginandswitchusersinmulti-userrunIeveIs（在多用户运行级别下登录和切换用户）Archive,compress,unpackanduncompressfilesusingtar,star,gzip,andbzip2（运用tarstargzipbzip2吩咐打包、压缩、解包、解压缩文件）CreatCandedittextfiles（创建和编辑文本文件）Create,delete,copyandmovefilesanddirectories（创建、删除、复制和移动文件及书目）Createhardandsoftlinks（创建硬链接文

15、件和符号链接文件）1.ist,setandchangestandardugorwxpermissions（雀看、设置和变更标准的文件权限）1.ocate,readandusesystemdocumentationincludingman,info,andfilesinusrsharedoc.（利用man、info吩咐查找帮助，阅读usrsharedoc节目下的文档）Note:RedHatmayuseapplicationsduringtheexamthatarenotincludedinRedHatEnterprise1.inuxforthepurposeofevaluatingcandida

16、tesabilitiestomeetthisobjective.OperateRunningSystemsBoot,reboot,andshutdownasystemnormally（正常地启动、重启和关闭系统）BootsystemsintodifferentrunIeveIsmanually（手动启动系统到另一个运行级别）Usesingle-usermodetogainaccesstoasystem（运用单用户模式去获得系统访问权限）IdentifyCPU/memoryintensiveprocesses,adjustprocessprioritywithrenice,andkillprocesses（确定CPU/memory的状态，运用renice吩咐调整进程优先级，杀死进程）1.ocateandinterpretsystemlogfiles（定位和理解系统日志文件）Accessavirtualmachine*sconsole（访问虚拟机限制台）Startandstopvirtualmachines（开启、停止虚拟机）