YourcompanyhasanActiveDirectoryforest.ThenetworkcontainsExchangeServer2007ServicePack1（SP1）andExchangeServer2003ServicePack2（SP2）servers.AlldomaincontrollersrunWindowsServer2003（x86）ServicePack1（SP1）.YouplantodeployExchangeServer2010onthenetwork.YouneedtorecommendchangestotheserverssothatyoucandeployExchangeServer2010servers.Whatshouldyouupgradefirst？（）
A.alldomaincontrollerstoWindowsServer2003（x64）SP2
B.alldomaincontrollerstoWindowsServer2008（x86）
C.allExchangeServer2003serverstoExchangeServer2007SP2
D.allExchangeServer2007SP1serverstoExchangeServer2007SP2
参考答案：D
