The challenges were really cool at first, I started solving some quickly, but then it got difficult and I ended up speeding up to try to rest, but 7 hours of testing are enough to solve them all! In total there are 10 questions and each one has a greater weight than the other, so if you are going to dedicate yourself at the beginning, focus on the ones that have more weight in the score, something I didn't do at the beginning.
Well, if you want to prepare yourself beforehand, do some labs from portswigger labs, basic explorations in AWS, API exploration and evasion techniques in web explorations (SSRF, XSS, SQL Injection, etc.)
That's it, again I congratulate The SecOps Group, you are certainly at my top as companies I recommend for certification and your innovative model.