In Windows 2000, domains exist in trees. A domain tree consists of a root-level domain and child domains, each of which can contain other child domains. Parallel directory trees are called forests.

Examine Active Directory structure with our sample Active Directory layout If you're moving from Windows NT to Windows Server 2003, one of your biggest challenges is Active Directory.

In Windows Server, a child domain is a subdomain under a parent domain, inheriting policies and trust relationships. For example, if the parent domain is example.com, a child domain might be ...