I’m not ignorant of Kubernetes or its functions from a broad point of view, but I am no expert. I am working on going for my CKA exam and am currently going through A Cloud Guru. My work paid for the CKA already so I am working through the material and am hoping to take it by the end of the month. One things A Cloud Guru does that I appreciate is allow you to build servers to do actives with through the lessons. It allows you to set up an actually Kubernetes cluster to work without additional cost to you. That is of course if you have the high end membership, which work kindly pays for.
Professionally I support Kubernetes in a cloud environment as well as multiple on premises servers. My specialty thus far in my career has been on premise. I know enough currently to do some basics. Things like look at logs, describe pods, and containers, as well as rollback deployments, get namespaces and the like, so the basics really. I’m a quick google so in a real environment I could figure out most things pretty reasonably quick. I need to work on hosting a small app I have written to really understand it.