An Active Directory is a directory structure used on Microsoft Windows based computers and servers to store information and data about networks and domains. Here are some of the important parameters used in Active Directory.
Object: An object is anything that can be part of the directory. e.g: user, group, shared folder, printer etc.
Organizational Unit: It is a Active Directory container into which you can place users, groups, computers, and other organizational units in a hierarchial manner for ease of administration or management.
Domain: A domain is a collection of objects. The benefits of a domain are Centralized Administration – Management of the entire domain can be done with access to one database.
Single Logon Process – Access to network resources can be granted through a single logon.
Scalability – Very large networks can be created.
Organizational Unit: An organizational unit is a container with objects.
Tree: Trees are a collection of one or more Domains.
Forest: A forest is a collection of Trees.
Schema: The structure of Active Directory Domain Service database is the schema. A schema is a set of attributes used to describe a particular object in Active Directory.
Trust: A trust is a relationship established between two or more domains to allow users in one domain to be authenticated by a domain controller in another domain.