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Chapter Summary
Active Directory is a hierarchical database that provides directory services to users and client computers within the directory.
The Active Directory schema defines the types of objects allowed in Active Directory, as well as their attributes.
Active Directory logically groups resources into a forest, which can contain multiple domain trees.
Sites are used to define resources that are connected by high-speed LAN bandwidth versus resources connected by lower-speed WAN bandwidth.
Global catalog servers provide an efficient means of querying for resources across domains within a forest.
Active Directory is partitioned into three naming contexts: schema, domain, and configuration.
DSProxy and DSAccess function as intermediaries between a global catalog server and an Exchange Server 2003 client.
Exchange Server 2003 integrates with the SMTP, NNTP, and World Wide Web services of Windows Server 2003 and IIS.
