How has the introduction of complex VPN topologies redefined the meaning of a VPN?
- A site can be part of two VPNs only.
- Two customers can connect in a single VPN.
- A site can be part of one VPN only.
- A site can be part of more than one VPN.
Explanation: In the MPLS L3 VPN architecture, Route Targets (RTs) were introduced specifically to support complex topologies. While a Route Distinguisher (RD) makes a prefix unique within a single VRF, RTs are extended BGP communities that identify VPN membership, allowing a single site to be a member of multiple VPNs simultaneously.
Related exam: Checkpoint Exam: MPLS and VPN Technologies
