单项选择题
A. Configure a GlobalNames zone and add a Host (A) resource record for Web1.
B. Create an Alias (CNAME) resource record for Web1 in the forest root domain zone.
C. Create a reverse lookup zone and add an Alias (CNAME) resource record for Web1.
D. Create a Host Information (HINFO) resource record for Web1 in the forest root domain zone.
单项选择题 Your company has a single active directory forest that has an active directory domain named na.contoso.com. a member server named server2 runs the DNS server role. The server2 DNS service hosts multiple secondary zones including na.contoso.com. you need to reconfigure server2 as a caching-only DNS server. What should you do?（）
单项选择题 Your network consists of single active domain. The domain contains a serve named server1 that runs windows server 2008 all client computers run windows vista. All computers are members of the active directory domain. You assign the secure server (Require Security) IPsec policy to server1 by using a GPO. Users report that they fail to connect to server1. You need to ensure that users can connect to server1. All connections to server1 must be encrypted. What should you do?（）
单项选择题 Your network contains a single Active Directory domain named contoso.com.The domain contains a DNS server named Server1 that hosts the contoso.com zone.The network is connected to the network of a partner company. The partner companys network contains a DNS server that hosts a zone named nwtraders.com.You need to ensure that computers in contoso.com can resolve the names of computers in nwtraders.com.The solution must not require any changes to the zone configuration of nwtraders.com.What should you configure on Server1？（）