Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway? 

Answer options:

A. Off
B. Best Effort
C. Auto
D. Force Encrypted

A

Reference: https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/admin_guide/Cisco-Expressway-Administrator-Guide-X8-10.pdf