After Windows Server 2012, you may add servers running Windows Server 2019 domain controllers to a domain that has existing controllers from earlier versions.

After Windows Server 2012, you may add servers running Windows Server 2019 domain controllers to a domain that has existing controllers from earlier versions.

• A. True
• B. False
• C. Depends
• D. Not Applicable

Answer: (A)

Introducing a Windows Server 2019 domain controller into a domain that already has older domain controllers is supported. Active Directory is designed to operate with a mix of server versions, so you can add the newer 2019 DC without having to upgrade all existing controllers at once. The new controller will join the domain, replicate with the existing DCs, and you can gradually retire older servers as you raise functional levels and transfer roles if desired. In practice, this staged upgrade path is common and recommended to minimize downtime and risk, which is why this statement stands as True.

Introducing a Windows Server 2019 domain controller into a domain that already has older domain controllers is supported. Active Directory is designed to operate with a mix of server versions, so you can add the newer 2019 DC without having to upgrade all existing controllers at once. The new controller will join the domain, replicate with the existing DCs, and you can gradually retire older servers as you raise functional levels and transfer roles if desired. In practice, this staged upgrade path is common and recommended to minimize downtime and risk, which is why this statement stands as True.