What is the purpose of ”vpn 0” in the configuration template when onboarding a WAN edge node?

What is the purpose of ”vpn 0” in the configuration template when onboarding a WAN edge node?
A . It carries control traffic over secure IPsec connections between vSmart controllers and vEdge routers, and between vSmart and vManager
B . It carries control out-of-bond network management traffic among the Viptela devices in the overlay network.
C . It carries control traffic over secure DTLS or TLS connections between vSmart controllers and vEdge routers, and between vSmart and vBond

View Answer

Answer: C