多项选择题 Your network contains a server that runs Windows Server 2008 R2. You need to schedule backups of the server. The solution must ensure that multiple versions of the backup are available. Which two possible backup locations should you use？（）

单项选择题 You have a file serve that runs windows server 2008. The serve has a shared folder. You need to receive a notification when a user stores more than 500MB of data in the shared folder. You must allow users to store more than 500MB of data in the shared folder. What should you do?（）

单项选择题 your company has a main office and two branch offices. Domain controllers in the main office host an active directory-integrated zone. The DNS servers in the branch office host a secondary zone for the domain and use the main office DNS servers as their DNS master servers for the zone. The company adds a new branch office. You add a member server named branch3 and install the DNS service on the server. You configure a secondary zone for the domain. The zone transfer fails. You need to configure DNS to provide zone data to the DNS server in the new branch office. What should you do?（）