Your role of Network Administrator at vceguide.com includes the management of the Active Directory forest. The network includes servers that run Windows Server 2008 R2 and Windows Server 2012.
The forest contains three domains: a root domain named vceguide.com, a child domain named US.vceguide.com and another child domain named Research.US.vceguide.com. The vceguide.com root domain contains two Windows Server 2012 domain controllers named ABC-DC1 and ABC-DC2. ABC-DC1 contains the forest FSMO roles. ABC-DC1 contains the forest FSMO roles. ABC-DC2 contains the domain FSMO roles for the vceguide.com domain.
The US.vceguide.com domain contains two Windows Server 2008 R2 domain controllers named USABC- DC1 and US-ABC-DC2. US-ABC-DC1 contains the domain
FSMO roles for the US.vceguide.com domain. US-ABC-DC2 is configured as a Global Catalog Server. The Research.US.vceguide.com domain contains two Windows Server 2012 domain controllers named Res-US-ABC-DC1 and Res-US-ABC-DC2. Res-US-ABC-DC1 contains the domain FSMO roles for the Res.US.vceguide.com domain. Res-US-ABC-DC2 is configured as a Global Catalog Server.
All domain controllers in the forest are configured as DNS Servers. You plan to install a Windows Server 2008 R2 domain controller in the Research.US.vceguide.com domain.
Which of the existing domain controllers must be online in order to create the planned additional domain controller?
A. ABC-DC1
B. US-ABC-DC1
C. US-ABC-DC1 and US-ABC-DC2
D. Res-US-ABC-DC1
E. Res-US-ABC-DC1 and Res-US-ABC-DC2
F. US-ABC-DC1 and Res-US-ABC-DC1
