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:

The PDC emulator is used as a reference DC to double-check incorrect passwords and it also receives n

ew 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 locko

uts 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.