Which of the following is not a valid AD structure: Logical, Physical, Forest, Branch?

• A. Logical
• B. Physical
• C. Forest
• D. Branch

Answer: (D)

Active Directory is organized through two main perspectives: a logical structure and a physical structure. The logical structure defines how resources are named and arranged for administration—think domains, trees, forests, and organizational units. The physical structure deals with how data is actually replicated across locations—sites and subnets that manage replication traffic.

A branch office isn’t a formal AD structure. You might refer to a branch office when talking about a location, but there’s no AD construct named “branch.” The valid AD structures are the logical ones (domains, trees, forests, OUs) and the physical ones (sites for replication). That’s why the option labeled Branch isn’t a recognized AD structure.