Q. What are the physical components of active directory? Logical Components of Active Directory

In creating the hierarchical database structure of Active Directory, Microsoft facilitated locating resources such as folders and printers by name rather than by physical location. These logical building blocks include domains, trees, forests, and OUs. The physical location of objects within Active Directory is represented by including all objects in a given location in its own site. Because a domain is the basic unit on which Active Directory is built, the domain is introduced first; followed by trees and forests (in which domains are located); and then OUs, which are containers located within a domain.