The registry is a system-wide database used for storing Windows 95 soft- ware and hardware configuration settings. The registry consists of the System.dat and User.dat files, which are located in the Windows folder. These files are backed up as...

The DNS name " proposed for this Active Directory domain consists of a single label, which is not recommended. DNS domain name should be unique and fully qualified, consisting of one or more labels separated by a period ("."), followed by a top level domain.

When promoting a Windows Server 2008 or Windows Server 2008 R2 replica domain controller, the option to auto-install the DNS Server role is disabled or grayed out in the Active Directory Installation Wizard (DCPROMO). Text in the Additional information field states: