Which two statements about Expressway media traversal are true? (Choose two.)
A . Expressway Control is the traversal server installed in the DM
C . The Expressway Edge must be put in a firewall DMZ segment.
D . Cisco Unified Communications Manager zone can be either traversal server or client.
E . The Unified Communications traversal zone can be used for Mobile and Remote Access.
F . Both Expressway Edge interfaces can be NATed.
Answer: B,D