RHCSA RHCE考前准备.docx

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1、RHCSA+RHCE考前打算RHCSACertification:RHCSExamObjectivesOverviewThisguideprovidesinformationcandidatesmayuseinpreparingtotaketheRedHatCertifiedSystem.Administrator(RHCSA)examonRedHatEnterprise1.inux6.CandidatestakingtheRedHatCertifiedTechnician(RHCT)examonRedHatEnterprise1.inux5shouldconsultthepastRHCT/R

2、HCEExamobjectiveslinkedabove.RedHatisnotresponsibleforthecontentoraccuracyofotherguides,books,onlineresources,oranyotherinformationprovidedbyorganizationsorindividualsotherthanRedHatTrainingandCertification.RedHatreservestherighttochangethisguidewhenappropriate.Candidateswhohaveenrolledinforthcoming

3、classesorexamsareadvisedtocheckthisguideperiodicalIyforchanges.ProspectiveemployersofRHCEsshouldverifyanyandallclaimsbypeopleclaimingtoholdthiscertificationbyrequestingtheircertificatenumberandverifyingithere.Performance-basedExamsTheRHCSAexamisaperformance-basedevaluationofRedHatEnterprise1.inuxsys

4、temadministrationskillsandknowledge.Candidatesperformanumberofroutinesystemadministrationtasksandareevaluatedonwhethertheyhavemetspecificobjectivecriteria.Performance-basedtestingmeansthatcandidatesmustperformtaskssimiIartowhattheymustperformonthejob.AuthorizedTrainingPartnersOnlyRedHatandRedHatCert

5、ifiedTrainingPartnersadministertheRHCSexam.Prospectivecandidatesshouldexerciseduedi1igencewhenpurchasingaseatinanRHCSAexamfromaproviderotherthanRedHatitself.Theyshouldverifythattheprovideris,infact,anauthorizedtrainingpartnerorreselleringoodstanding.Pleasenotifygreymarketredhataboutorganizationsthat

6、purporttooffertheRHCSAexambutarenotRedHatCertifiedTrainingPartners.ScoresandReportingOfficialscoresfortheRHCSAexamscomeexclusivelyfromRedHatCertificationCentral.RedHatdoesnotauthorizeexaminers,trainingpartnersorotherdepartmentsorindividualswithinRedHattoreportresultstocandidates.Scoresontheexamarere

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

8、RedHatmakesnorepresentationsregardingtheuseofscoresforanyotherpurpose,suchasrankingorcomparingcandidates.FormatoftheRHCSAExamTheRHCSAexamisahands-on,practicalexamthatlasts2.5hours.Internetaccessisnotprovidedduringtheexam.Outsidematerialsarenotpermitted.DocumentationthatshipswithRedHatEnterprise1.inu

9、xisavailableduringtheexam.RedHatreservestherighttomakechangestoformat,includingtimingandthepoliciesabove.Suchchangeswi11bemadepublicinadvancethroughrevisionstothisdocument.PreparationfortheRHCSExamRedHatencouragesal1candidatesforRHCSAtoconsidertakingoneormoreofitsofficialtrainingcoursestohelpprepare

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

11、dHat,sclassescanbeanimportantpartofone,spreparation,attendingclassdoesnotguaranteesuccessontheexam.Previousexperience,practice,andnativeaptitudearcalsoimportantdeterminantsofsuccess.ManybooksandotherresourcesonsystemadministrationforRedHat,Sproductsareavai!able.RedHatdoesnotendorseanyaspreparationgu

12、idesforanyexams.Nevertheless,candidatesmayfindadditionareadingdeepensunderstandingandcanprovehelpful.ExamObjectivesRedHatreservestherighttoadd,modifyandremoveobjectives.Suchchangeswillbemadepublicinadvancethroughrevisionstothisdocument.RHCSAexamcandidatesshouldbeabletoaccomplishthetasksbelowwithouta

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

14、ssh和VNC访问远程系统）1.oginHndSWilChUSerSinmulti-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tar/stargzip/bzip2吩咐打包、压缩、解包、解压缩文件）Createandedittextfiles（创建和编辑文本文件）Create,delete,copyandmovefilesanddirectories（创建、删除、熨制和移动文件及书目）Createhardandsoftlinks（创建硬

15、链接文件和符号链接文件）1.ist,setandchangestandardugorwxpermissions（看看、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书目下的文档）Note:RedHatmayuseapplicationsduringtheexamthatarenotincludedinRedHatEnterprise1.inuxforthepurposeofevaluatingcand

16、idatesabilitiestomeetthisobjective.OperateRunningSystemsBoot,reboot,andshutdownasystemnormally（正常地启动、重启和关闭系统）Hootsystemsintodifferentrun1.eveIsmanually（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（定位和理解系统口志文件）Accessavirtualmachine,sconsole（访问虚拟机限制台）Startandst