单项选择题
A.[PrincipalPermission （SecurityAction.Demand， Name = @"BUILTIN\Administrators"）]
B.[PrincipalPermission （SecurityAction.Demand， Role = @"BUILTIN\Administrators"）]
C.[PrincipalPermission （SecurityAction.Assert， Name = @"BUILTIN\Administrators"）]
D.[PrincipalPermission （SecurityAction.Assert， Role = @"BUILTIN\Administrators"）]
单项选择题 CriticalservicesarerunningonCKD20，adomaincontroller.Youhavecompletedrestructuringtheorganizationalunithierarchyforthedomainanddeletedtheneedlessobjects.WhatwouldyoudotoperformanofflinedefragmentationoftheActiveDirectorydatabaseonCKD20whileensuringthatthecriticalservicesremainonline（）A.OpentheMicrosoftManagementConsole（MMC）andstoptheDomainControllerservice.Afterthat，runthedefragtoolB.StartthedomaincontrollerintheDirectoryServicerestoremodeandruntheNtdsutiltoolC.StartthedomaincontrollerandthenusetheDefragtooltostartdefragmentationD.OpentheMMCandstoptheDomainControllerservice.Afterthat，runtheNtdsutiltool.E.Alloftheabove
单项选择题 YoucreateaWebpagethatcontainsthefollowingdiv.YouhaveaJavaScriptarraynamedimageurlsthatcontainsalistofimageURLs.YouneedtowriteaJavaScriptfunctionthatwillinsertimagesfromtheURLsintotarget.Whichcodesegmentshouldyouuse？（）A.$（imageurls）.each（function（i，url）{$（''，url）.append（'#target'）；}）；B.$（imageurls）.each（function（i，url）{$（'#target'）+=$（''）.attr（'src'，url）；}）；C.$.each（imageurls，function（i，url）{$（''）.attr（'src'，url）.appendTo（'#target'）；}）；D.$.each（imageurls，function（i，url）{$（'#target'）.append（''）.src=url；}）；
单项选择题 Youarecreatinganundobufferthatstoresdatamodifications.Youneedtoensurethattheundofunctionalityundoesthemostrecentdatamodificationsfirst.Youalsoneedtoensurethattheundobufferpermitsthestorageofstringsonly.Whichcodesegmentshouldyouuse？（）A.Stack<string> undoBuffer=newStack<string>（）；B.StackundoBuffer=newStack（）；C.Queue<string>undoBuffer=newQueue<string>（）；D.QueueundoBuffer=newQueue（）；
单项选择题 （）造价低、支持海量规模、便于广域网访问，多用于云存储，网盘，备份归档及视频存储等场景。
单项选择题 ()技术自动将不同活跃度的数据和不同特点的存储介质动态匹配，提高存储系统性能并降低用户成本。