Which tool should you use?

Your network contains a domain-based Distributed File System (DFS) namespace named contoso.comDFS1. You have two servers named Server1 and Server2 that are configured as namespace servers for contoso.comDFS1.
You need to verify that the DFS namespace replicates successfully between Server1 and Server2.
Which tool should you use?

A.
Dfscmd

B.
Dfsdiag

C.
Dfsrdiag

D.
Dfsutil

Explanation:
I think if it talked about namespace, you have to use dfsdiag and not dfsrdiag. I am not sure on this.