A customer is planning to consolidate their backup environment using EMC NetWorker and
Data Domain with replication. The customer’s WAN is managed by a third-party and firewall
exceptions must be requested in advance. Which protocol and port number does Data
Domain use for replication?

A.
Secure Shell protocol, port 22

B.
Data Domain proprietary protocol, port 2051

C.
Secure File Transfer protocol, port 22

D.
Secure File Transfer protocol, port 2051