Taking the day off was a great idea. Every now and again having a Wednesday off is great. Part of the day was devoted to taking the AWS certified machine learning specialty beta exam. The whole process took about two hours and was very interesting. The PSI system took a little bit to setup and get running. The actual exam part took about 90 minutes. It has been a bit since my last adventure to a testing facility. It was pretty much exactly the way I remember it being.