Which security design element is considered a default or foundational protection mechanism that a design team should verify is present, rather than treat as an optional add-on, in a modern Cisco collaboration deployment?
Correct Answer: Mutual TLS and certificate-based authentication between call control, gateways, and endpoints, along with SRTP for media encryption
Explanation: TLS/certificate-based authentication and SRTP for media encryption are foundational protections a design should confirm are enabled, unlike cleartext-by-default signaling and media, disabling certificate validation, sharing one certificate indefinitely, requiring no authentication, or treating SRTP as unnecessary internally.
Correct Answer: Mutual TLS and certificate-based authentication between call control, gateways, and endpoints, along with SRTP for media encryption
Explanation: TLS/certificate-based authentication and SRTP for media encryption are foundational protections a design should confirm are enabled, unlike cleartext-by-default signaling and media, disabling certificate validation, sharing one certificate indefinitely, requiring no authentication, or treating SRTP as unnecessary internally.