YouhaveanExchangeorganizationthatcontainsanExchangeServer2003SP2.AllserversaremembersofoneAdministrativeGroupandoneRoutingGroup.YouplantotransitiontheorganizationtoExchangeServer2010.YouneedtopreparetheExchangeorganizationforthedeploymentofExchangeServer2010mailbox，ClientAccessandHubTransportsservers.Whatshouldyoudofirst？（）
A.Disablealllinkstateupdates.
B.CreateaRoutingGroupconnector.
C.ModifytheActiveDirectoryschema.
D.DeleteallRecipientUpdateService（RUS）objects.
参考答案：C
