单项选择题
A.The best option is to use a writable domain controller in the two offices.
B.The best option is to disable site link bridging for the forest and configure Exchange specific casts.
C.The best option is to upgrade all RODCs to Windows Server 2008 （x64） RODCs.
D.The best option is to use a DNS zone for each office.
单项选择题 You work as the enterprise exchange administrator at TestKing.com. TestKing.com makes use of Microsoft Exchange Server messaging solution. The TestKing.com network consists of a single ActiveDirectory forest that contains two domains and one site. The funcitional level of the forest is set at Windows Server 2003. TestKing.com has a headquarters and two offices that are connected to each other via a WAN link. Furthermore， all these three offices have a direct link to the Internet. The domain controllers are configured as global catalog servers and runs Windows Server 2003 R2. All these three offices contain two global catalog servers. During the course of the day you receive aninstruction to install Mailbox， Client Access and Hub Transport Exchange Server 2010 servers in all these offices. One local server will be utilized at every office to send e-mail to the Internet. To ensure productivity you need to propose the necessary modifications to the Active Directory environment in order to supprt the installation. What should you do？（）
单项选择题 You work as the enterprise exchange administrator at TestKing.com. TestKing.com makes use of Microsoft Exchange Server messaging solution. The TestKing.com network consists of a single ActiveDirectory domain named testking.com. TestKing.com has its headquarters in Chicago and a branch office in Dallas. Both offices are an ActiveDirectory site that is connected to each other via WAN link. You receive an intruction from management toplan the installation of Exchange Server 2010 in both offices. You need to ensure that user access ismaintained in the event of a server failure as well as keepin the amount of Exchange servers in bothActive Directory sites to a minimum. What should you do？（）
单项选择题 You work as the exchange administrator at TestKing.com. The TestKing.com network contains an Exchange Server 2003 Organization. The Exchange Server 2003 Organization contains a front end servernamed TESTKING-EX01 as well as a back end server named TESTKING-EX02 that is accessible fromthe Internet using mail.testking.com. TestKing.com wants to migrate the Exchange Server 2003 organization to Exchange Server 2010. You receive an instruction to deploy a Mailbox server named TESTKING-SR01 and a Client Access Servernamed TESTKING-SR02. Management also want all users to access Outlook Web Access and OutlookWeb App （OWA） using the https：//mail.testking.com URL. You need to determine the DNS configurationfor the external name of mail.testking.com. What should you do？（）