Marino Wijay presents "CKA Episode 5: Networking Part 1"
Marino Wijay is a Field Engineer at a super secret startup. He could tell you the name of it... but then he'd have to kill you. In this talk he goes into the networking aspects of Kubernetes that you will need to understand to sit and pass your Certified Kubernetes Administrator examination.

Resources:
https://twitter.com/virtualized6ix
https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/high-availability/#steps-for-the-rest-of-the-control-plane-nodes
https://docs.linuxfoundation.org/tc-docs/certification/tips-cka-and-ckad
https://killer.sh/
https://www.katacoda.com/