Which type of VPN uses a hub-and-spoke configuration to establish a full mesh topology?
- A. GRE over IPsec
- B. dynamic multipoint VPN
- C. MPLS VPN
- D. IPsec virtual tunnel interface
Correct Answer: B
Explanation: Dynamic Multipoint VPN (DMVPN) is a Cisco software solution designed to build multiple VPN tunnels in a dynamic and scalable manner. It specifically uses a hub-and-spoke configuration to establish what effectively becomes a full mesh topology; while spokes initially establish tunnels with a central hub, they can also obtain information from that hub to establish direct secure tunnels with each other as needed
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