Your network contains an Active Directory domain named contoso.com. All domain controllers run
Windows Server 2012 R2. The domain contains two domain controllers.
The domain controllers are configured as shown in the following table.
The Branch site contains a perimeter network.
For security reasons, client computers in the perimeter network can communicate with client
computers in the Branch site only.
You plan to deploy a new RODC to the perimeter network in the Branch site.
You need to ensure that the new RODC will be able to replicate from DC10.
What should you do first on DC10?
A.
Run the Add-ADDSReadOnlyDomainControllerAccount cmdlet.
B.
Create an Active Directory site.
C.
Run the Active Directory Domain Services Configuration Wizard.
D.
Create an Active Directory subnet.
Explanation:
Add-ADDSReadOnlyDomainControllerAccount Creates a read-only domain controller (RODC)
account that can be used to install an RODC in Active Directory.
Note:
* Notes
Once you have added the RODC account, you can add an RODC to a server computer by using
the Install-ADDSDomainController cmdlet with the -ReadOnlyReplica switch parameter.
* Example
Adds a new read-only domain controller (RODC) account to the corp.contoso.com domain using
the North America site as the source site for the replication source domain controller.
C:\PS>Add-ADDSReadOnlyDomainControllerAccount -DomainControllerAccountName RODC1 –
DomainName corp.contoso.com -SiteName NorthAmerica Incorrect:
Not B: There already is a branch site.Add-ADDSReadOnlyDomainControllerAccount
Question says it needs to be able to replicate from DC 10. To replicate from a DC an RODC must talk to a writable domain controller so shouldn’t you convert DC10 to a Writeable DC(answer C)?
You are right to install writable DC on a DC10 server you first have to demote RODC. To do this launch Active Directory Domain Services Configuration Wizard.
Answer is C.
It does not say that a writable DC must be installed.
It says that a new RODC will be installed in the dmz (in the Branch site).
Also, it says that this new RODC will be able to replicate from DC10.
If you cannot place a writable Windows Server domain controller in the nearest site to the RODC, RODC replication depends on a site link bridge between the site links that contain the site of the RODC (Branch site, in our case) and the site of the writable Windows Server domain controller.
Differences Between an RODC and a Writable Domain Controller:
https://technet.microsoft.com/en-us/library/cc771545(v=ws.10).aspx
Data replication between domain controllers:
An RODC only replicates data from a writable domain controller, and it never replicates data to another domain controller in the domain. This is true for both the Active Directory data and the SYSVOL data.
Answer is C
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