单项选择题 Whichisthevalididentifier？（）

单项选择题 WhilerunningtheOracleUniversalInstalleronaUnixplatformtoinstallOracleDatabase10gsoftware，youarepromptedtorunorainstRoot.shscript.Whatdoesthisscriptaccomplish？（）

单项选择题 classGuy｛Stringgreet（）｛returnhi｝｝classCowboyextendsGuy｛Stringgreet（）｛returnhowdy”｝｝classSurferextendsGuy｛Stringgreet（）｛returndudel”｝｝classGreetings{publicstaticvoidmain（string[]args）{Guy[]guy={newGuy（），newCowboy（），newSurfer（）}；for（Guy0：guys）System.out.print（g.green（））；｝｝结果为：A.运行时异常被输出B.第7行出现一个错误，编译失败C.第8行出现一个错误，编译失败D.hihihiE.hihawdydoude

单项选择题 GiventhecommandlinejavaPass2and：publicclassPass2{publicvoidmain（String[]args）{intx=6；Pass2p=newPass2（）；p.doStuff（x）；System.out.print（”mainx=+x）；}voiddoStuff（intx）{System.out.print（”doStuffx=+x++）；}}Whatistheresult？（）A.Compilationfails.B.Anexceptionisthrownatruntime.C.doStuffx=6mainx=6D.doStuffx=6mainx=7E.doStuffx=7mainx=6F.doStuffx=7mainx=7

单项选择题 publicclassPerson{privatename；publicPerson（Stringname）{this.name=name；}publicbooleanequals（Objecto）{if（!oinstanceofPerson）returnfalse；Personp=（Person）o；returnp.name.equals（this.name）；}}Whichistrue？（）

单项选择题 Dated=newDate（0L）；17.Stringds=December15，2004”；18.／／insertcodehereWhatupdatesd?svaluewiththedaterepresentedbyds？（）

单项选择题 //pointXpublicclassfoo{publicstaticvoidmain（Stringargs）throwsException{java.io.printWriterout=newjava.io.PrintWriter{newjava.io.outputStreamWriter（System.out），true；out.printIn（Hello”）；}}}WhichstatementatPointXonline1allowsthiscodetocompileandrun？（）A.Importjava.io.*；B.Includejava.io.*；C.Importjava.io.PrintWriter；D.Includejava.io.PrintWriter；E.Nostatementisneeded.

单项选择题 Youwanttolimitaccesstoamethodofapublicclasstomembersofthesameclass.Whichaccessaccomplishesthisobjective？（）

单项选择题 publicclassTest{publicstaticvoidmain（String[]argv）{//insertstatementhere}}Whichstatement，insertedatline3，producesthefollowingoutput？（）Exceptioninthreadmain”java.lang.AssertionError：trueatTest.main（Test.java：3）A.asserttrue；B.assertfalse；C.assertfalse：true；D.assertfalse==true；E.assertfalse：false；

单项选择题 Youobservethatdatabaseperformancehasdegradedoveraperiodoftime.Whileinvestigatingthereason，youfindthatthesizeofthedatabasebuffercacheisnotlargeenoughtocachealltheneededdatablocks.Whichadvisorycomponentwouldyoureferto，inordertodeterminetherequiredsizeofthedatabasebuffercache？（）A.MemoryAdvisorB.SegmentAdvisorC.SQLTuningAdvisorD.SQLAccessAdvisorE.AutomaticDatabaseDiagnosticMonitor（ADDM）

单项选择题 Toperformadatabasepoint－in－timerecoveryusingRMAN，afterdatabaserestoration，youmustensurethatthedatabaseisinwhichofthefollowingstates？（）

单项选择题 WhichofthefollowingstepsisincorrectinthefollowingsequenceofenablingtheARCHIVELOGmodeofadatabase？（）

单项选择题 网店的推广和营销不包含以下哪种类型?()

单项选择题 YourcompanyhasaserverthatrunsWindowsServer2008R2.TheserverrunsaninstanceofActiveDirectoryLightweightDirectoryServices（AD？LDS）.YouneedtoreplicatetheAD？LDSinstanceonatestcomputerthatislocatedonthenetwork.Whatshouldyoudo（）A.Runtherepadmin/kcccommandonthetestcomputer.B.CreateanamingcontextbyrunningtheDsmgmtcommandonthetestcomputer.C.CreateanewdirectorypartitionbyrunningtheDsmgmtcommandonthetestcomputer.D.CreateandinstallareplicabyrunningtheADLDSSetupwizardonthetestcomputer.

单项选择题 内存动态分区管理中，最佳适应算法的空白区是( )。

单项选择题 YouaredevelopinganASP.NETWebpagethatwilldisplaythemedianvaluefromasequenceofintegervalues.Youneedtocreateanextensionmethodtocomputethemedianvalue.Whichinterfaceshouldyouaddtheextensionmethodto？（）

单项选择题 YournetworkconsistsofasingleActiveDirectorydomain.YouhaveadomaincontrollerandamemberserverthatrunWindowsServer2008R2.BothserversareconfiguredasDNSservers.ClientcomputersruneitherWindowsXPServicePack3orWindows7.Youhaveastandardprimaryzoneonthedomaincontroller.Thememberserverhostsasecondarycopyofthezone.Youneedtoensurethatonlyauthenticatedusersareallowedtoupdatehost（A）recordsintheDNSzone.Whatshouldyoudofirst（）A.Onthememberserver，addaconditionalforwarder.B.Onthememberserver，installActiveDirectoryDomainServices.C.AddallcomputeraccountstotheDNSUpdateProxygroup.D.ConvertthestandardprimaryzonetoanActiveDirectory-integratedzone.

单项选择题 Youneedtoensurethatwhenthebuttonisclicked，bothupdatepanelsupdatethetimwithoutgeneratingapostback.Whatshouldyoudo？（）

单项选择题 程序：classTestApp{publicstaticvoidmain（String[]args）{intX=5：switch（x）{casel：case2：case3：System.out．println（一季度”）；break；case4：case5：case6：System.out．println（二季度”）；break；default：System.out．println（三季度以上”）；break；}}}上述程序运行后的结果是哪项？（）A.一季度B.二季度C.三季度以上D.无输出

单项选择题 现有：1.classBook{2.&ensp