Mastering Active Directory - Second Edition

FSMO roles

There are five flexible single master operations roles in the Active Directory infrastructure. Each of them perform specific Active Directory tasks that other domain controllers in the infrastructure are not permitted to perform. These five FSMO roles are divided into two categories based on their operation boundaries:

Forest level	Domain level
Schema operations master	The primary domain controller (PDC) emulator operations master
Domain-naming operations master	The relative identifier (RID) operations master
N/A	The infrastructure operations master

When we create the first Active Directory forest and the first Active Directory domain, all these FSMO roles will be installed in the domain's first domain ...