| A | B |
| Active Directory | A service that stores information about objects on a network, and makes the information available to users & administrators. |
| Snap-in | An administrative too that can be added to the Microsoft Management Console (MMC) |
| Root Domain | is the parent in which child domains are created. |
| An Active Directory schema | "Specifies the types of objects that administrators can create and the attributes of each object |
| hotfix | A software update that addresses one specific issue. |
| slipstreaming | The process of incorporating a service pack and hotfixes into an operating system |
| Service pack | A collection of updates, fixes and/or enhancements to a software program delivered in the form of a single installable package. |
| roaming profile | a copy of a local user profile that is stored on a network share so that the user can access it from any computer on the network. |
| Performance counters | Configurable components generating real-time performance data displayed by the System Monitor. |
| System Log | Contains information about the events generated by Windows Server 2008 components. |
| memory leak | "The result of a program allocating memory for use but not freeing up that memory after its use. |
| printer pool | One logical printer that supports multiple physical printers. |