Questions to revisit: review answers you found tricky in Cert Buddy, see the correct answer and explanation, and track which gaps you've closed.
The Mistakes Notebook collects every AI-901 practice question you have answered incorrectly. It shows the question, your wrong answer, the correct answer, and a full AI Insight explaining the concept. You can mark questions as reviewed once you feel confident with them.
Reviewing the Mistakes Notebook before a timed exam simulation is one of the highest-return study activities, because incorrect answers identify the exact knowledge gaps most likely to cost you points on the real AI-901 exam.