MPLS and Traffic Engineering Questions

Fundamentals and operational practices for multiprotocol label switching based networks and traffic engineering. Coverage includes the label forwarding paradigm, label distribution mechanisms such as label distribution protocol and resource reservation protocol for traffic engineered paths, segment routing options as a modern alternative, fast reroute and resilience patterns, virtual private network applications including layer three and layer two virtual private networks, operational provisioning and troubleshooting of label switched paths, and the interaction between label switching and interior gateway protocols. Candidates should understand typical service provider use cases, scaling considerations, and how to validate and debug label based forwarding.