You need to ensure that you can use IPAM to manage the DHCP and DNS settings in both domains

Your network contains an Active Directory forest that has two domains named contoso.com
and europe.contoso.com. The forest contains five servers. The servers are configured as
shown in the following table.

You plan to manage the DHCP settings and the DNS settings centrally by using IP Address
Management (IPAM).
You need to ensure that you can use IPAM to manage the DHCP and DNS settings in both
domains. The solution must use the minimum amount of administrative effort.
What should you do?

A.
Upgrade DCE1 and DCE2 to Windows Server 2012, and then install the IP Address
Management (IPAM) Server feature. Run the Set-IpamConfiguration cmdlet for each
domain.

B.
Upgrade DCE1 and DCE2 to Windows Server 2012, and then install the IP Address
Management (IPAM) Server feature. Run the Invoke-IpamGpoProvisioning cmdlet for each
domain.

C.
Upgrade DC1 and DC2 to Windows Server 2012, and then install the IP Address
Management (IPAM) Server feature. Run the Invoke-IpamGpoProvisioning cmdlet for each
domain.

D.
Upgrade DC1 and DC2 to Windows Server 2012, and then install the IP Address
Management (IPAM) Server feature. Run the Set-IpamConfiguration cmdlet for each
domain.

Explanation:
Invoke-IpamGpoProvisioning
Creates and links group policies in the specified domain for provisioning required access
settings on the servers managed by the computer running the IP Address Management
(IPAM) server.
http://technet.microsoft.com/en-us/library/jj553805.aspx
Set-IpamConfiguration
Sets the configuration for the computer running the IP Address Management (IPAM) server,
including the TCP port number over which the computer running the IPAM Remote Server
Administration Tools (RSAT) client connects with the computer running the IPAM server.
http://technet.microsoft.com/en-us/library/jj590816.aspx