Exam 300-420 topic 1 question 107 discussion

T-LOC extension is for providing high availability when two EDGEs are connected to two different circuits. It allows to use the pair router as an underlay.

Traffic can route to internet via a central router that have internet via advertising a default route via OMP.

Correct: B When a WAN Edge router is connected to an MPLS transport link and you want to provide Internet access to it, the typical approach is: B. Internet access must be provided at the WAN Edge router through either a 4G/5G link or a local Internet circuit. In this scenario, the WAN Edge router is connected to the MPLS network for private traffic but needs a separate Internet connection to access the public Internet. This can be achieved through a 4G/5G cellular link or a dedicated local Internet circuit, allowing the router to route traffic to the public Internet while using the MPLS network for private traffic.

This question is a very good question, but the answer is TLOC Extensions, these guys explain it in such way here is amazing and it then clicks: https://www.networkacademy.io/ccie-enterprise/sdwan/tloc-extension

Not sure I agree.. the question says a WAN edge router not 2.. and also "how is internet provided"? I am taking a stab for B

"What is TLOC Extension? TLOC extension is a feature that allows a WAN Edge router to communicate over the WAN transport connected to the adjacent WAN Edge router through a TLOC-extension interface" Link: https://www.networkacademy.io/ccie-enterprise/sdwan/tloc-extension

D is correct!! https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2018/pdf/BRKRST-2091.pdf