Before taking the course, I didn't really know what Kubernetes and Docker do and what kind of relationship they have. I'm really grateful that I was able to solidify my basics by listening to the instructor's lecture. It's a great guide for training Kubernetes. The course has only been out for a short time, but the videos are updated and new content is continuously added, which is really helpful. I was also interested in the CKA certification exam, so thank you for sharing your valuable experience. I also have a goal of taking the CKA exam that the instructor took and getting the certificate. I haven't finished it yet, but I will listen to it consistently to get the certificate!