What is NFV, SDN, Virtual Networks, Docker, Kubernetes and Overlay Networks?

Chuck's Python course: (Discounted at $10): bit.ly/2lsDZeo
Chuck's SDN book: amzn.to/2lCp6WN
Chuck's SDN Startup: www.tallac.com
Connect with Chuck on LinkedIn here: / chuck-black-1017676
Connect with David on LinkedIn here: / davidbombal
In these series of videos David Bombal, CCIE and Chuck Black, Developer discuss the future of networking. SDN, Network automation, network programmability, APIs, NETCONF, REST APIs and lots of other technologies!
What is NFV? How do SDN and NFV work together? Is SDN the same as NFV? What are containers? How are containers different to Virtual Machines? What is Kubernetes? Which is better - Containers or Virtual Machines?
Learn from someone who wrote SDN code. Who wrote SDN books. Who understands how SDN code actually works.