单项选择题
A.configure dynamic NAT on the firewall.
B.configure the firewall to allow the use of teredo.
C.Configure a link local IPv6 address for the internal interface of the firewall.
D.Configure a global IPv6 address for the external interface of the firewall.
单项选择题 Your company has a single active directory domain named contoso.com. all servers run windows server 2008. You have a public DNS server named server1, and an e-mail server named server2. Client computers outside the company domain are unable to send e-mail messages to contoso.com. you verify that the host (A) DNS record for server2 is available to external client computers. You need to ensure server2 can receive e-mail messages from external client computers. How should you configure the contoso.com DNS zone?（）
单项选择题 Your network contains an Active Directory forest. The functional level of the forest is Windows Server 2008 R2.You plan to deploy DirectAccess.You need to configure the DNS servers on your network to support DirectAccess.What should you do？（）
多项选择题 Your company has a network that has an active directory domain. The domain has two servers named DC1 and DC2. You plan to collect events from DC2 and transfer them to DC1. You configure the required subscriptions subscriptions by selecting the normal option for the event delivery optimization setting and using the HTTP protocol . you discover that none of the subscriptions work. You need to ensure that the servers support event collections, which three actions should you perform? （）