单项选择题 Your company has a main office and two branch offices that are connected by wan links. The main office runs the DNS service on three domain controllers. The zone for your domain is configure as an active directory-integrated zone.Each branch office has a single member server that hosts a secondary zone for the domain. The DNS servers in the branch offices use the main office DNS server as the DNS master server for the zone. You need to minimize DNS zone transfer ove r the WAN links. What should you do?（）

单项选择题 Your network contains a server named Server1 that has the Routing role service installed. Server1 has two network connections. One network connection connects to the internal network. The other network connection connects to the Internet.All network connections connected to the internal network use private IP addresses. You install a Web server named Web1. Web1 hosts a secured Web site that only allows connections over TCP port 8281. Web1 is connected to the internal network.You need to ensure that the secure Web site can be accessed from the Internet.What should you do from the Routing and Remote Access console？（）

单项选择题 You have a file server that runs windows server 2008. A user restores a large file by using the previous versions tab.You need to view the progress of the file restoration. What should you do?（）