The domain controller that is the time source for the domain is which domain controller role?

The domain controller that is the time source for the domain is which domain controller role?

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

Answer: (A)

The PDC Emulator is the domain’s authoritative time source. In Active Directory, the Windows Time service uses the PDC Emulator FSMO role in the domain to provide a single, reliable time reference for all domain controllers and domain-joined clients. This DC should be configured to synchronize with a reliable external time source (like an NTP server), and all other DCs in the domain sync their time to that PDC Emulator. The other FSMO roles—Schema Master, Domain Naming Master, and Infrastructure Master—handle schema changes, forest-wide domain management, and cross-domain object references, respectively, and are not involved in time synchronization. So the correct choice identifies the PDC Emulator as the time source for the domain.

The PDC Emulator is the domain’s authoritative time source. In Active Directory, the Windows Time service uses the PDC Emulator FSMO role in the domain to provide a single, reliable time reference for all domain controllers and domain-joined clients. This DC should be configured to synchronize with a reliable external time source (like an NTP server), and all other DCs in the domain sync their time to that PDC Emulator. The other FSMO roles—Schema Master, Domain Naming Master, and Infrastructure Master—handle schema changes, forest-wide domain management, and cross-domain object references, respectively, and are not involved in time synchronization. So the correct choice identifies the PDC Emulator as the time source for the domain.