What is a commonality between DMVPN and FlexVPN technologies?

What is a commonality between DMVPN and FlexVPN technologies?
A . FlexVPN and DMVPN use IS-IS routing protocol to communicate with spokes
B. FlexVPN and DMVPN use the new key management protocol
C. FlexVPN and DMVPN use the same hashing algorithms
D. IOS routers run the same NHRP code for DMVPN and FlexVPN

View Answer

Answer: D

Explanation:

Reference: https://packetpushers.net/cisco-flexvpn-dmvpn-high-level-design/