Which FSMO role is tasked with maintaining the domain schema in Active Directory?

Which FSMO role is tasked with maintaining the domain schema in Active Directory?

• A. Schema Master
• B. Domain Naming Master
• C. Infrastructure Master
• D. PDC Emulator Master

Answer: (A)

The main concept tested is who controls changes to the Active Directory schema. The schema defines all object classes and attributes that AD can store, and its updates must be centralized to keep the forest consistent. This centralized control lies with the Schema Master, a single domain controller in the forest that has write permissions to the schema partition. When you extend the schema—such as adding new object classes for an application—you perform that change on the Schema Master, and it is then replicated to all other domain controllers. The other roles handle different tasks: the Domain Naming Master manages forest-wide domain creation or deletion; the Infrastructure Master updates cross-domain references; the PDC Emulator acts as the primary domain controller for backward compatibility, handling password changes, time synchronization, and related functions. Because only the Schema Master writes to the schema, it is the correct choice for maintaining the domain schema.

The main concept tested is who controls changes to the Active Directory schema. The schema defines all object classes and attributes that AD can store, and its updates must be centralized to keep the forest consistent. This centralized control lies with the Schema Master, a single domain controller in the forest that has write permissions to the schema partition. When you extend the schema—such as adding new object classes for an application—you perform that change on the Schema Master, and it is then replicated to all other domain controllers. The other roles handle different tasks: the Domain Naming Master manages forest-wide domain creation or deletion; the Infrastructure Master updates cross-domain references; the PDC Emulator acts as the primary domain controller for backward compatibility, handling password changes, time synchronization, and related functions. Because only the Schema Master writes to the schema, it is the correct choice for maintaining the domain schema.