You are the network administrator for TestKing, which employs 500 users. The network consists of a single Active Directory domain named All network servers run Windows Server 2003, and all client computers run Windows XP Professional.
You install Terminal Services on three servers TestKing1, TestKing2, and TestKing3. Initially, users can successfully connect to all three terminal servers by using Remote Desktop connections.
Months later, users begin reporting that they can no longer connect to any of the terminal servers by using Remote Desktop connections.
How should you solve this problem?（）

You are the network administrator for Active Directory.
Another system administrator installs Software Update Services (SUS) on a production Windows Server 2003 computer. You are assigned to manage the SUS computer. You need to ensure that you can recover SUS if the server fails.
You need to back up all components that are required to restore SUS to its current configuration. Because of limited space, you must not back up unnecessary data.
What action or actions should you perform? Select all that apply.（）