One of the most IRRITATING and FRUSTATING things I had working in the field was dealing with multiple Domains . You’d have so many clients with their own Active Directory setups and each time you’d have to go directly to the Small …

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The Lazy Admin : Managing Multiple Domains with PowerShell

Active Directory possesses a hierarchical structure, which includes three levels namely forests, trees and domains . The highest structure is forest and offers.

The rest is here:
Forests and Domains: Introduction to File Hierarchy

I have a 2 domain Active Directory (2008) forest.

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Ignite Realtime: Using SSO for Child AD Domains Not…