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.（）

• A、Back up the SUS folder that contains synchronized content.
• B、Back up the folder in which the SYSAdmin site was created.
• C、Back up the System State data fro the Windows Server 2003 computer.
• D、Back up the IIS metabase