Your infrastructure divided in 2 sites. You have a forest root domain and child domain. There is only one DC on site 2 with no FSMO roles. The link goes down to
site 2 and no users can log on. What FSMO roles you need on to restore the access?
A.
Infrastructure master
B.
RID master
C.
Domain Naming master
D.
PDC Emulator
Explanation:
D)
The PDC emulator is used as a reference DC to double-check incorrect passwords and it also receives new password changes.
PDC Emulator is the most complicated and least understood role, for it runs a diverse range of critical tasks. It is a domain-specific role, so exists in the forest root
domain and every child domain. Password changes and account lockouts are immediately processed at the PDC Emulator for a domain, to ensure such changes
do not prevent a user logging on as a result of multi-master replication delays, such as across Active Directory sites.