单项选择题 在C#中，数据类型转换的方式有（）

单项选择题 ACIOcontactsyouforanRFPresponseforanIntel-basedopportunityadaybeforeitsduedate.YourcompetitorisHP，andyouhavelimitedtimetocompletetheRFP.Yourtechnicalproductspecialistisworkingonanotherproject.WhatisthebestsourceofinformationtopositionIBMagainstHP？（）A.www.ibm.comB.IBMCompetelineC.www.hp.comD.Yoursalesmanager

单项选择题 YourcompanyhasabranchofficethatisconfiguredasaseparateActiveDirectorysiteandhasanActrveDirectorydomaincontroller.TheActiveDirectorysiterequiresalocalGlobalCatalogservertosupportanewapplication.YouneedtoconfigurethedomaincontrollerasaGlobalCatalogserver.Whichtoolshouldyouuse（）A.TheDcpromo.exeutilityB.TheServerManagerconsoleC.TheComputerManagementconsoleD.TheActiveDirectorySitesandServicesconsoleE.TheActrveDirectoryDomainsandTrustsconsole

单项选择题 YouhaveaDHCPserverthatrunsWindowsServer2008.YourestoretheDHCPdatabasebyusingarecentbackup.YouneedtopreventDHCPclientsfromreceivingIPaddressesthatarecurrentlyinuseonthenetwork.Whatshouldyoudo？（）

单项选择题 您有一台运行Windows7的计算机。您运行Runas并指定／savecred参数来启动一个应用程序。您需要删除已存储的密码。您应该怎么办？（）