In the exam content outline, this is the last topic covered, and in fact is something that is barely mentioned. However, in the exam you will see a question or two on the subject. PSM 1 is the foundational Scrum exam and thus the amount of material covered is not as large as perhaps a PMP or "overall" Scrum certification, but Anthony, Lauren and I do cover all you'll need for that certification. If you would want to go deeper, the PSM 2 and then PSM 3 expands upon these basic concepts.
If you would like to see those certifications here on ITPro, make sure you contact us through the chat bubble and let the team know. Thank you for checking in on this!