单项选择题 Inoneofyouronlinetransactionprocessing（OLTP）applications，mostusersfrequentlymodifythevalues，includingthekeyvalues，oftheapplicationtables.Someusersgenerateapplicationreportsbyusingmultipleapplicationtables.Whatisthebesttablestructurethatyoucanusetogainoptimalperformance？（）A.HeaptableB.ObjecttableC.ExternaltableD.ClusteredtableE.GlobaltemporarytableF.Index-organizedtable（IOT）

未知题型 The/ReportsfolderisacompressedfolderonanNTFSpartitiononyourWindows2000Professionalcomputer.Youwanttocopythe/ReportsfoldertoanuncompressedfolderinthesameNTFSvolume.Youwantthe/Reportsfoldertoremaincompressedafteritiscopied.Whatshouldyoudo?（）A.Copythefolder.B.Compressthetargetfolder，andcopythefolder.C.Applycompressiontoeachfileinthe/Reportsfolder，andcopythefolderD.Uncompressthe/Reportsfolder，compressthetargetfolder，andcopythefolder

单项选择题 UsingthereportwizardyoucreateatabularreporttodisplayallthecolumnsintheEMPtable.Therecordsareorderedbythedeptnameandjobcolumns.Youneedtocreateahierarchicalreportthatbreaksonthedeptnameandjobvalues.Usingthedatamodelhowwouldyoucreatethisbreakstructure?（）A.SpecifythebreakorderonthegempgroupPropertypalette.B.Specifyabreakorderonthedept_nameandjobcolumnspropertypalettes.C.Clickanddragthedept_nameandjobscolumnoutandaboveofthegempgrouptocreateanewparentgroup.D.Changethepositionofthedept_nameandthejobcolumnswithinthegempgroup.