单项选择题
A.Enable selective authentication over the forest trust.
B.Create an external one-way trust from na.contoso.com to nwtraders.com.
C.Instruct User1 to log on to the computer by using his user principal name （UPN）.
D.Instruct User1 to log on to the computer by using the user name nwtraders\User1.
单项选择题 Your network contains an Active Directory forest. The forest contains a single domain. You want to access resources in a domain that is located in another forest. You need to configure a trust between the domain in your forest and the domain in the other forest. What should you create（）
单项选择题 Your network contains an Active Directory domain named contoso.com. All domain controllers run Windows Server 2008 R2. The functional level of the domain is Windows Server 2008 R2. The functional level of the forest is Windows Server 2008. You have a member server named Server1 that runs Windows Server 2008. You need to ensure that you can add Server1 to contoso.com as a domain controller. What should you run before you promote Server1（）
单项选择题 You have a DNS zone that is stored in a custom application directory partition. You install a new domain controller. You need to ensure that the custom application directory partition replicates to the new domain controller. What should you use（）