4. Active Directory Forest and Trees
Tree
When you have many multiple domains in your company like (FreeNetworking.com,
westFreeNetworking.com and sales.FreeNetworking.com) these both domains are
considered to b in the same tree. The tree also supports many and multiple of
domains.
Forest
The forest is a collection of one or more domains which also
have one or more trees. There is a term which is called Schema and his work is
that what and how Active Directory objects are stored. Schema also defines the
database for the entire forest but is should be remembered that each one domain
in the forest has its personal copy of the database based on the schema.
Trusts
Parent and child domain are automatically connected by a
trust. Users in similar domains can use these trusts to access resources
in another domain assuming that they have access. Trees in the forest are linked jointly via a trust automatic. This ensure that any users in any domain in the forest can access any resource in the forest to which they have access.
Global Catalog
The Global Catalog in order for in categorize for users to find resources in any domain in the forest (keep in mind that each domain has a different database). A Global Catalog Server contain partial information about all object in the forest
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