单项选择题 Your network contains an internal network and a perimeter network. The internal network contains an Active Directory forest. The forest contains a single domain.  You plan to deploy 10 Edge Transport servers on the perimeter network.  You need to recommend a solution for the Edge Transport server deployment. The solution must meet the following requirements： .Allow administrators to apply a single security policy to all Edge Transport servers .Reduce the administrative overhead that is required to manage servers .Minimize the attack surface of the internal network What should you recommend？（）

单项选择题 YourcompanyhasanActiveDirectoryforest.ThenetworkcontainsExchangeServer2007ServicePack1（SP1）andExchangeServer2003ServicePack2（SP2）servers.AlldomaincontrollersrunWindowsServer2003（x86）ServicePack1（SP1）.YouplantodeployExchangeServer2010onthenetwork.YouneedtorecommendchangestotheserverssothatyoucandeployExchangeServer2010servers.Whatshouldyouupgradefirst？（）

单项选择题 You have Exchange Server 2003 organization.  The organization contains a front-end server named FE1 and a back-end server named BE1. FE1 is accessible from the Internet by using mail.contoso.com. You plan to transition the organization to Exchange Server 2010.  You will deploy a Mailbox server named MBX1 and a Client Access server named CAS1. Users will access Outlook Web App （OWA） by using the URL https：//mail.contoso.com. You need to recommend a DNS configuration for the external name of mail.contoso.com.  Which server should be associated with the name mail.contoso.com？（）