多项选择题
A.Windows Vista Business （x86）
B.Windows Vista Business with SP2 （x64）
C.Windows 7 Edition （x86）
D.Windows 7 Ultimate （x64）
E.Windows XP Pro （x64）
单项选择题 You have a server that runs Windows Server 2008 Service Pack 2 （SP2）. You plan to install Exchange Server 2010 on the server. You need to install the Exchange Server 2010 prerequisites for the Mailbox， Client Access， and Hub Transport server roles. What should you do on the server（）？
单项选择题 YouhaveanExchangeorganization.AllserversintheorganizationhaveExchangeServer2010ServicePack1（SP1）installed.Youneedtopreventexternalorganizationsthatdonothavesenderpolicyframework（SPF）recordsfromsendinge-mailmessagestotheorganization.Whatshouldyouconfigure？（）
单项选择题 Youhaveconfiguredthesystemtopurgemailboxesafter8daysofbeingdeleted.Youneedtoreceiveanotificationwhenthemailboxesarepurged.Whatshouldyoudo？（）