I have been on do280 one year ago and now I'm leaning do280 at home lab and will need exercise material. Is it possible to get it? For example for chapter 5 /home/student/DO280/labs/network-sdn/todo-db.yaml and so one..
Those materials are only available in Red Hat labs. But it's not absolutely necessary for training. The Red Hat labs are sophistically built for their students and will work with their official student guides only. You can search online for similar builds made by individuals or build one yourself you have the right experience.