| A | B |
| Group Policy | Setting of rules and policies for computers and users in Windows Server 2003 and Windows 2000 Server |
| Group Policy Object (GPO) | collection of policies stored in two locations: a Group Policy container (GPC) and a Group Policy template (GPT) |
| headless server | server without a monitor, keyboard, mouse, or video card, which is administered remotely |
| hive | One of five sections of the registry. Each hive is a discrete body of keys, sub-keys, and values that record configuration information for the computer |
| host | Any device on the network that uses TCP/IP, or a computer on the Internet you might be able to log on to |
| host file | local ASCII text file that maps host names to IP addresses |
| hypertext | system of writing and displaying text that enables text to be linked in multiple ways at several levels of detail |
| Hypertext Markup Language (HTML) | language used for writing pages for use on the Internet or an intranet |
| Hypertext Transfer Protocol (HTTP) | method by which Web pages are transferred over the network |