Which statement correctly describes the Schema Master role?

• A. It time-synchronizes domain controllers
• B. It handles domain naming
• C. It manages RID pool
• D. It controls updates to the directory schema

Answer: (D)

In Active Directory, updates to the directory schema are controlled by a single authority to prevent conflicting changes across domain controllers. The Schema Master FSMO role is the one that has authority to modify or extend the schema—the definitions of object classes and attributes that the directory can store. Because there is only one Schema Master in the forest, any schema changes are made there and then replicated to all other domain controllers, ensuring consistency and integrity of the directory structure.

The other descriptions point to different FSMO roles: time synchronization is managed by the PDC Emulator, domain naming is handled by the Domain Naming Master, and the RID Master is responsible for allocating the RID pool to domain controllers for new objects. Thus, the statement about controlling updates to the directory schema accurately identifies the Schema Master.