Your company has a main office and two branch offices. Your network consists of a single domain
Active Directory forest. An Active Directory exists for each office. The main office contains five
domain controllers that run windows Server 2004 (x64). Each branch office contains one read only
domain control (RODC) that runs Windows Server 2008. All domain controllers are configured as
global catalog servers. You plan to deploy one Exchange Server 2010 server in each site. You need to
recommend changes to Active Directory to support the planned deployment. The solution must
ensures that Exchange servers branch office site connect to their local domain controllers. What
should you recommend?

A.
Implement a DNS zone for each office.

B.
Change all RODCs to Windows Server 2008 (x64) RODCs.

C.
Implement a writable domain controller in each branch office.

D.
Disable site link bridging for the forest and configure Exchange specific casts.

Explanation:
RODC domain controllers are not considered to be suitable for Exchange Servers. Microsoft
documentation states you must have a writable domain controller to support exchange server