Your company has a main office and a branch officethat are configured as a single Active Directory
forest.
The functional levelof the Active Directory forestis Windows Server 2003.
There are four Windows Server 2003 domain controllers in the main office.
You need to ensure that you are able to deploy a read-only domain controller (RODC) at the branch
office.
Which two actions should you perform?
(Each correct answer presents part of the solution. Choose two.)
A.
Raise the functional level of the forest to Windows Server 2008.
B.
Deploy a Windows Server 2008 domain controller atthe main office.
C.
Raise the functional level of the domain to Windows Server 2008.
D.
Run the adprep/rodcprep command.
Explanation:
http://technet.microsoft.com/en-us/library/cc731243%28v=ws.10%29.aspx
Prerequisites for Deploying an RODC
Complete the following prerequisites before you deploy a read-only domain controller (RODC):
Ensure that the forest functional level is Windows Server 2003 or higher
Run Adprep.exe commands to prepare your existing forest and domains for domain controllers that run
Windows Server 2008 or Windows Server 2008 R2. The adprep commands extend the Active Directory
schema and update security descriptors so that you can add the new domain controllers. There are different
versions of Adprep.exe for Windows Server 2008 and Windows Server 2008 R2.
1. Prepare the forest and domains. There are three adprep commands to complete and have the
changes replicate throughout the forest. Run the three commands as follows:
* Prepare the forest by running adprep /forestprep on the server that holds the schema master
operations master (also known as flexible single master operations or FSMO) role to update the
schema.
* Prepare the domain by running adprep /domainprep /gpprep on the server that holds the
infrastructure operations master role.
* If you are installing an RODC in an existing Windows Server 2003 domain, you must also run
adprep /rodcprep.
2. Install Active Directory Domain Services (AD DS). You can install AD DS by using a wizard, the
command line, or an answer file.
Deploy at least one writable domain controller running Windows Server 2008 or Windows Server 2008 R2 in
the same domain as the RODC and ensure that the writable domain controller is also a DNS server that has
registered a name server (NS) resource record for the relevant DNS zone. An RODC must replicate domain
updates from a writable domain controller running Windows Server 2008 or Windows Server 2008 R2.