Which type of VPN supports multiple sites by applying configurations to virtual interfaces instead of physical interfaces?
- IPsec virtual tunnel interface
- DMVPN
- MPLS VPN
- GRE over IPsec
Explanation: An IPsec VTI is a newer IPsec VPN technology that simplifies the configuration required to support multiple sites and remote access. IPsec VTI configurations use virtual interfaces to send and receive IP unicast and multicast encrypted traffic. Therefore, routing protocols are automatically supported without requiring configuration of GRE tunnels.
Exam with this question: Modules 6 - 8: WAN Concepts Exam
Exam with this question: 8.4.2 Module Quiz - VPN and IPsec Concepts
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