Which utility can you use to validate an LSP in an MPLS environment?
uRPF
MPLS LSP ping
logging
RSVP
Correct answer: B
Question 2
What is the primary function of aVRF on a router?
It enables the router to support multiple separate routing tables, which allows the device to handle overlapping IP addresses.
It enables a router to run BGP and a distance vector routing protocol at the same time, which allows it to serve as a VPN endpoint between remote sites.
It enables a router to configure VLANs locally, which provides segregation between networks.
It enables the router to provide faster switching through the network by using labels to identify the input and output interfaces for neighbor routers.
Correct answer: A
Question 3
Which two statements describe primary differences between MPLS Layer 2 and Layer 3 VPNs?(Choose two.)
Layer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use L2TPv3 tunneling.
Layer 2 VPNs use AToM, but Layer 3 VPNs use MPLS/BGP.
Layer 2 VPNs use BGP, but Layer 3 VPNs use VPLS.
Layer 2 VPNs use L2TPv3 tunneling, but Layer 3 VPNs use GRE tunneling.
Layer 2 VPNs use IPsec tunneling, but Layer 3 VPNs use pseudowires to provide tunneling.