MCTS Windows Server® 2008 Active Directory Configuration: Study Guide

5.4. Configuring Replication

Sites are generally used to define groups of computers that are located within a single geographic location. In most organizations, machines that are located in close physical proximity (for example, within a single building or branch office) are well connected. A typical example is a LAN in a branch office of a company. All of the computers may be connected together using Ethernet, and routing and switching technology may be in place to reduce network congestion.

Often, however, domain controllers are located across various states, countries, and even continents. In such a situation, network connectivity is usually much slower, less reliable, and more costly than that for the equivalent LAN. Therefore, Active Directory ...