For Exam IV, is it enough to just read through the case studies & ethics part and then take the exam? For instance i scanned over the barings case study, looked at one of the sample questions (volatility smile) and wouldn’t have got that right without guessing (knew it was a volatility play but I’ve never heard of the smile bit) as it’s not specifically mentioned in the case study. I therefore assume that the $50 on the sample test question bank is required as there could be a large number of curve ball questions not directly in the case studies? thks