单项选择题 Your company has a branch office that is configured as a separate Active Directory site and has an  Active Directory domain controller.   The Active Directory site requires a local Global Catalog server to support a new application.  You need to configure the domain controller as a Global Catalog server.  Which tool should you use（）

单项选择题 Your network consists of a single Active Directory domain. All domain controllers run Windows Server  2003.   You upgrade all domain controllers to Windows Server 2008 R2.   You need to ensure that the Sysvol share replicates by using DFS Replication (DFS-R).  What should you do（）

单项选择题 You have an existing Active Directory site named Site1. You create a new Active Directory site and  name it Site2.   You need to configure Active Directory replication between Site1 and Site2. You install a new domain  controller. You create the site link between Site1 and Site2.  What should you do next（）