which server should you install IPAM?

Your network contains an Active Directory forest named contoso.com. All servers run
Windows Server 2012 R2. The domain contains four servers. The servers are configured as
shown in the following table.

You need to deploy IP Address Management (IPAM) to manage DNS and DHCP.
On which server should you install IPAM?

A.
DC1

B.
DC2

C.
DC3

D.
Server1

Explanation:
D) IPAM cannot be installed on Domain Controllers. All other servers have the DC role
http://technet.microsoft.com/en-us/library/hh831353.aspx