单项选择题
A.Implement a DNS zone for each office.
B.Change all RODCs to Windows Server 2008 （x64） RODCs.
C.Implement a writable domain controller in each branch office.
D.Disable site link bridging for the forest and configure Exchange-specific costs.
单项选择题 You have an Exchange organization that contains Exchange 2000 Server Service Pack 3 （SP3）， Exchange Server 2003 Service Pack 2 （SP2）， and Exchange Server 2007 Service Pack 1 （SP1） servers. You need to transition the organization to Exchange Server 2010. What should you do first？（）
单项选择题 YouhaveanExchangeServer2010HubTransportservernamedHub1.Youinstallanapplicationonathird-partyservernamedServer1.Youdiscoverthattheapplicationcannotauthenticatetoremoteservers.Youneedtoensurethattheapplicationcanrelaye-mailmessagesbyusingHub1.Whatshouldyoudo？（）
单项选择题 You have an Exchange Server 2010 organization. You plan to deploy a database availability group （DAG）. You need to recommend disk configurations for the servers in the organization. The solution must minimize costs. What should you recommend？（）