A gauge of where you stand after the Docker, Kubernetes, Envoy, and Istio courses. Tick only what you could do unaided, from a blank terminal, not "I saw it in a lesson." The verdict updates live.
The basics. If most of these aren't checked, start (or revisit) the Docker and Kubernetes fundamentals.
The working practitioner toolkit. Most of these checked means genuinely employable on containers and Kubernetes, and ready for CKA or CKAD.
Depth and breadth beyond the day job. These lean toward senior, but true seniority also needs real production scars a course can't give.