Java认证考试

现有      public class Parentt      public void change (int x){)     )      public class Child extends Parent{     //覆盖父类change方法     }      下列哪个声明是正确的覆盖了父类的change方法?()    A、  protected void change (int x){}B、  public void change(int x,  int y){}C、  public

题目

现有      public class Parentt      public void change (int x){)     )      public class Child extends Parent{     //覆盖父类change方法     }      下列哪个声明是正确的覆盖了父类的change方法?()    

  • A、  protected void change (int x){}
  • B、  public void change(int x,  int y){}
  • C、  public void change (int x){}
  • D、  public void change (String s){}
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相似问题和答案

第1题:

Certkiller.comhasamainofficeandabranch&ens

Certkiller.comhasamainofficeandabranchoffice.Certkiller.com’snetworkconsistsofasingleActiveDirectoryforest.SomeoftheserversinthenetworkrunWindowsServer2008andtherestrunWindowsserver2003.

YouaretheadministratoratCertkiller.com.YouhaveinstalledActiveDirectoryDomainServices(ADDS)onacomputerthatrunsWindowsServer2008.Thebranchofficeislocatedinaphysicallyinsecureplace.IthasnotITpersonnelonsiteandtherearenoadministratorsoverthere.YouneedtosetupaRead-OnlyDomainController(RODC)ontheServerCoreinstallationcomputerinthebranchoffice.WhatshouldyoudotosetupRODConthecomputerinbranchoffice()


参考答案:B

第2题:

Animportanttablespaceofyourdatabaseisdropped&ens

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1.YoulogontoEnterpriseManagerasSYSDBA.

2.Youselectthemaintenancescreen.

3.YouchoosePerformRecoveryoptiononthemaintenancescreen.

4.YouchooseWholeDatabaseintheObjectTypedrop-downlistPerformRecovery:Typescreen.5.YouchooseRecovertoCurrentTimefromtheOperationTypeonthePerformRecovery:Typescreen.

6.YouprovidetheHostCredentialsforadatabaseuser.onthePerformRecovery:Typescreen.

7.Youclickthecontinuebutton.

Aninformationscreenappearssayingthatthedatabaseisunavailable.Whatisthisinformationscreen?()


参考答案:C

第3题:

对于技术改造项目还应分析企业现有的哪些因素()

A、现有场地的可利用性

B、现有公用设施的可利用性

C、现有技术的可利用性

D、现有设备的可回收性

E、现有辅助设施的可利用性


参考答案:ABE

第4题:

YouareresponsibleforCompany‘snetwork.You&ens

YouareresponsibleforCompany‘snetwork.

YouhavebeenassignedthetasktocreateanddeployastandardWindows2000Professionalimageto1,000newclientcomputersintheCompany‘smainoffice.YoulogontoaclientcomputernamedDuplicateTKbyusingthelocaladministratoraccount.YouinstallthreeWindows2000ProfessionalcompatiblesoftwarepackagesonDuplicateTK.Afterthesoftwareinstallationsaredoneyoucreateanimagewithathird-partyimagingsoftware.Youdeploytheimagetoatestclientcomputerandjointheclienttoadomain.Whenyoulogontothetestcomputerbyusingadomainuseraccount,thenewapplicationsdonotappearinthestartmenu.Youneedtobeabletore-createtheimagetoincludetheapplicationsintheStartmenuforallusers.

WhatactionshouldyoutakeonDuplicateTK?()


参考答案:D

第5题:

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Theresourcegroupsareconfiguredasfollows:

RG1:

ParticipatingNodes:Node1,Node2

StartupPolicy:OnlineOnHomeNodeOnly

FalloverPolicy:FalloverToNextPriorityNodeInTheListFallbackPolicyNeverFallback

RG2:

ParticipatingNodes:Node2,Node1

StartupPolicy:OnlineOnHomeNodeOnly

FalloverPolicy:FalloverToNextPriorityNodeInTheListFallbackPolicy:FallbackToHigherPriorityNodeInTheList

AnOnlineonDifferentNodesDependencyhasbeenconfiguredas:HighPriorityResourceGroups:RG2

IntermediatePriorityResourceGroup:RG1

TheclusterhasbeenrunningwithoutanyproblemswithbothresourcegroupsontheirhomenodeswhenNode1suffersacriticaloperatingsystemproblemcausingthenodetohalt.Whatisthestatusoftheresourcegroups?()()


参考答案:C

第6题:

Whichcodefragmentswillsucceedininitializinga&ens

Whichcodefragmentswillsucceedininitializingatwo-dimensionalarraynamedtabwithasizethatwillcausetheexpressiontab[3][2]toaccessavalidelement?()

CODEFRAGMENTa:int[][]tab={{0,0,0},{0,0,0}};

CODEFRAGMENTb:inttab[][]=newint[4][];for(inti=0;i

CODEFRAGMENTc:inttab[][]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

CODEFRAGMENTd:inttab[3][2];

CODEFRAGMENTe:int[]tab[]={{0,0,0},{0,0,0},{0,0,0},{0,0,0}};


参考答案:B, E

第7题:

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参考答案:C

第8题:

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YouneedtomodifyyourTransact-SQLstatementsothatallproductsmatchingyourqueryappearintheXMLdocument.

Whatshouldyoudo?()


参考答案:B

第9题:

YournetworkcontainstwoserversnamedServer1and&ens

YournetworkcontainstwoserversnamedServer1andServer2thatrunWindowsServer2012R2.

Server1hastheHyper-Vserverroleinstalled.Server2hastheWindowsDeploymentServicesserverroleinstalled.OnServer1,youhaveavirtualmachinenamedVM1.Youplantodeployan

imagetoVM1byusingWindowsDeploymentServices(WDS).YouneedtoensurethatVM1can

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第10题:

YouareaExamSheetInc.consultantwhousesa&ens

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Fromyourportablecomputer,youmapadrivetoasharedfoldernamedConsultMerticsona

computernamedServer1.YouconfigureConsultMerticstobeavailableoffline.Whenyoulogoftheportablecomputer,youreceivethefollowingerrormessage.

Youneedtosuccessfullysynchronizetheofflinefiles.Whatshouldyoudo?()


参考答案:D

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