How many FSMO roles are there?
Not too many people know that Flexible Single Master Operations, also named single master operation or operations master, is a feature of Microsoft’s Active Directory. There are 5 FSMO roles: 1. Domain Naming Master â€”ForestWide Roles; 2. Schema Master â€”ForestWide Roles;3. RID Master (Relative ID Master) â€” Domain Wide Roles;4. PDC Emulator â€” Domain Wide Roles;5. Infrastructure Master â€” Domain Wide Roles. Not too many persons know that FSMO is a specialized domain controller (DC) set of tasks. They are used where standard data transfer and update methods prove to be inadequate.