Describe MPLS Layer 3 VPN
5 practice questions under this official exam objective (300-410) — each with the community-verified answer, a full option-by-option explanation and instant feedback.
What Breaks an LSP Between Two PE Routers?
An MPLS LSP between two PE routers is torn down when the LDP adjacency used to exchange label bindings is lost, or when the label bindings no longer m
Which Tag Sends MPLS L3VPN Packets to the Correct Customer VRF?
In an MPLS Layer 3 VPN, the route target (RT) extended community is the tag that identifies a customer's VPN membership and drives route import into t
What Is the Function of Penultimate Hop Popping (PHP)?
Penultimate hop popping (PHP) is an MPLS mechanism in which the last P router in the LSP pops the transport label so the egress PE receives only the V
MPLS L3VPN PE Router VPNv4 Translation
This question tests the role of the Provider Edge (PE) router in MPLS Layer 3 VPN architectures, specifically its function in translating customer rou
Which Protocol Advertises PE Routes to a CE Router in MPLS L3VPN?
In an MPLS Layer 3 VPN, VPNv4 prefixes carried by MP-BGP between PE routers are stripped of their RD before being handed to a VRF-unaware CE, and that