I got asked a lot on how to prepare for Professional Scrum Master I (PSM I) Assessment, it is really easy if you are doing it right.
- Have a good understand of Scrum, especially the principles, the best is to practise, be Scrum Master or Product Owner or as part of the Development Team, real-life working experience in Scrum Team for 4 ~5 years is desired, if that is not possible, consider to take a Professional Scrum Master or Professional Scrum Foundations Course
- Read Scrum Guide by Ken Schwaber and Jeff Sutherland, read it by heart and at least 4 or 5 times, I have personally read it at least 40 times and still found that there are a lot of things I miss during the read, it almost feels like it is new every time I read it.
- Do Scrum Open till you got 100% multiple times
The above Should be good enough for a pass, but if you are still not feeling confident, do the followings: