Your network contains an Active Directory forest. The forest contains a single domain named contoso.com. The
domain contains four domain controllers.
The domain controllers are configured as shown in the following table.
All domain controllers are DNS servers.
You plan to deploy a new domain controller named DC5 in the contoso.com domain.
You need to identify which domain controller must be online to ensure that DC5 can be promoted successfully
to a domain controller.
Which domain controller should you identify?
A.
DC1
B.
DC2
C.
DC3
D.
DC4
Explanation:
To perform a domain controller promotion you need the Infrastructure master to be online. The schema master
and the domain naming master are per-forest roles. Therefore, there is only one schema master and one
domain naming master per forest.
The RID master, the PDC master, and the infrastructure master are per-domain roles. Each domain has its
own RID master, PDC master, and infrastructure master. Therefore, if a forest has three domains, thereare
three RID masters, three PDC masters, and three infrastructures masters.