單項(xiàng)選擇題

our company has computers in multiple locations that use IPv4 and IPv6. Each location is protected by a firewall that performs symmetric NAT. You need to allow peer-to-peer communication between all locations. What should you do?（）

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.

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單項(xiàng)選擇題

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?（）

A.Add a mail exchange (MX) record for server2.
B.Add a mailbox (MB) record for server2. Set the mailbox host setting to server2.
C.Add a canonical (CNAME) record that maps server2 to contoso.com.
D.Add a server locator (SRV) record for server2. Set the service field to _smtp. Set the protocol field to _tcp. Set the port number to 25.

單項(xiàng)選擇題

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？（）

A. Modify the GlobalQueryBlockList registry key and restart the DNS Server service.
B. Modify the EnableGlobalNamesSupport registry key and restart the DNS Server service.
C. Create a trust anchor that uses a certificate issued by an internal certification authority (CA).
D. Create a trust anchor that uses a certificate issued by a publicly trusted certification authority (CA).