单项选择题
A.Convert contoso.com to a secondary zone.
B.Convert contoso.com to an Active Directory-integrated zone. Set dynamic updates for the zone to Secure only.
C.Convert contoso.com to an Active Directory-integrated zone. Set dynamic updates for the zone to Nonsecure and secure.
D.Change the domain functional level to Windows Server 2003. Set dynamic updates for the zone to Nonsecure and secure.
单项选择题 You have a DNS server named Server1 that runs Windows Server 2003 Service Pack 2 （SP2）. Server1 hosts a primary zone for contoso.com. On Server1， you update the host （A） record for server2.contoso.com to have a new IP address. On Server1， you run Ping server2.contoso.com from a command prompt and the old IP address for Server2 is returned.You need to ensure that the new IP address for Server2 resolves correctly on Server1. What should you do？（）
单项选择题 You are the network administrator for your company. All network servers run Windows Server 2003 Service Pack 2 （SP2）. You deploy a DNS server named DNS1 that runs Windows Server 2003 SP2. You need to configure DNS1 to use your ISP’s DNS servers to resolve all Internet queries. Internet name resolution should fail if the ISP’s DNS servers are unavailable. What should you configure on DNS1 server？（）
单项选择题 Your network consists of a single Active Directory domain named contoso.com. All servers run Windows Server 2003 Service Pack 2 （SP2）. You deploy a Web server named Server1. Users access the server by using the URL http：//server1.contoso.com. You need to create a new resource record that will allow users to access the server by using the URLhttp：//www.contoso.com. The solution must prevent the need to modify the new record if the IP address of Server1 changes. Which type of resource record should you configure？（）