单项选择题 All servers in your environment run Windows Server 2003. Your companys network includes multiple network segments and multiple routers. A member server that has the Routing and Remote Access service （RRAS） installed provides Internet connectivity for all client computers. The RRAS server is located in a perimeter network （also known as DMZ）. A client computer named Client1 is unable to connect to the Internet. The RRAS server is able to connect to the Internet. You need to pinpoint the location of the network issue.  What should you do？（）

单项选择题 All servers and client computers in your company are configured to use WINS for name resolution. The internal network is separated from a perimeter network （also known as DMZ） by a third-party firewall. Firewall rules do not allow name resolution between the internal network and the perimeter network. You move a Windows Server 2003 server named Server1 to the perimeter network. You need to ensure that all computers on the internal network can connect to Server1 by name.  What should you do？（）

单项选择题 Your company has an Active Directory directory service domain. The domain functional level is Windows Server 2003. The company has a main office with two domain controllers （DCs）. Users log on to client computers by using user principal names （UPNs）. You plan to set up a new branch office with one domain controller.  You need to ensure that when the branch office domain controllers connection to the main office is unavailable， users in the branch office can log on to the domain.  What should you do？（）