It was overall a good experience. Exam was not tough but It can test your docker skills and basic concepts. Docker EE is not much into picture ( Only for UCP and DTR) so no need to have a practicals for Docker EE. But for Docker CE, YOU MUST PRACTICE. Theory won't help you unless you are quite good at practicals. Focus should be on Images, Containers, Storage, Volume , Swarm and Ports, Secrets and basics of DTR and UCP. Docker Documentation is a good source to read and Linux academy has structured the syllabus in such a way that you can easily decode the content of official documentation. So It can save you time and gives you a vision to what to do and what you should avoid. I didn't have any prior docker experience but with Docker documentation, anybody can learn docker.