You need to ensure that you can use IPAM on Server1 to manage DNS on DC1

Your network contains an Active Directory domain named contoso.com. The domain
contains a domain controller named DC1 and a member server named Server1. Server1 has
the IP Address Management (IPAM) Server feature installed.
On DC1, you configure Windows Firewall to allow all of the necessary inbound ports for IPAM.
On Server1, you open Server Manager as shown in the exhibit. (Click the Exhibit button.)

You need to ensure that you can use IPAM on Server1 to manage DNS on DC1.
What should you do?

A.
Add Server1 to the Remote Management Users group.

B.
Modify the outbound firewall rules on Server1.

C.
Add Server1 to the Event Log Readers group.

D.
Modify the inbound firewall rules on Server1.

Explanation:
http://technet.microsoft.com/en-us/library/jj878313.aspx