单项选择题 Your network contains the servers shown in the following table. Server name S erver role Server location Server share Server1 File server Office1 Data1 Server2 File server Office2 Data2 Office1 and Office2 connect to each other by using a WAN link. Users in Office2 frequently access the same set of files stored in Data1. You need to reduce the amount of file transfer traffic across the WAN link. What should you add to Server1?（）

单项选择题 Your network contains a server named Server1 that runs Windows Server 2008 R2. Server1 is located in a branch office. You view the BranchCache configuration of Server1 as shown in the exhibit. (Click the Exhibit button.) You need to ensure that client computers in the branch office retrieve cached files from Server1 only. What should you do on Server1?（）

单项选择题 our company has an Active Directory domain. The company has a main office and a branch office. Both the offices have domain controllers that run active directory-integrated DNS zones. All client computers are configured to use the local domain controllers for DNS resolution. The domain controllers at the branch office location are configured as read-only domain controllers (RODC). You change the IP address of an exisiting server named SRV2 in the main office. You need the branch office DNS servers to reflect the change immediately.What should you do?（）