your company has a single active directory forest that has a domain in North America named na.contoso.com and a domain in south America named sa.contoso.com. The client computers run windows vista. You need to configure the client computes in north America office to improve the name resolution response time for resources in the south ameirca offica. What should you do?（）

单项选择题Your network contains a server named Server1.contoso.com. Server1 is located on the internal network. You have a client computer named Computer1 that runs Windows 7. Computer1 is located on a public network that is connected to the Internet. Computer1 is enabled for DirectAccess. You need to verify whether Computer1 can resolve Server1 by using DirectAccess. Which command should you run on Computer1？（）

A. nbtstat.exe a server1.contoso.com
B. netsh.exe dnsclient show state
C. nslookup.exe server1.contoso.com
D. ping.exe server1.contoso.com

单项选择题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.

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?（）

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.

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？（）

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).

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? （）

A.Run the wecutil qc command on DC1.
B.Run the wecutil qc command on DC2.
C.Run the winrm quickconfig command on DC1.
D.Run the winrm ruickconfig command on DC2.
E.Add the DC2 account to the administrators group on DC1.
F.Add the DC1 account to the administrators group on DC2.