Which characteristic describes Cisco SD-WAN?

Cisco SD-WAN leverages DTLS (Datagram Transport Layer Security) for control plane communication and TLS (Transport Layer Security) for data plane communication to establish secure, authenticated tunnels between SD-WAN components. This ensures the integrity and confidentiality of both management traffic and user data across the overlay network. The other options are incorrect because: Cisco SD-WAN uses centralized templates that can be applied to multiple devices, not unique per-device feature templates, for efficient configuration. Secure tunnels are automatically orchestrated and established by the SD-WAN controllers (vSmart and vBond), not requiring manual configuration. While there are control plane connections, the defining characteristic related to security and transport is the use of DTLS/TLS tunnels for all communication.