There is test theory that says you can answer xx number of questions you would have passed the entire 2 day exam.
My certifying board still makes candidates haul their ass to some city at their invitation and face two panels of three inquisitors. Maybe old school but one is unable to beat an oral examination with anything but actual knowledge. And it is brutal watching someone go down the primrose path not knowing it until too late. I have leaned it is not only a true representation of knowledge to sit for an oral exam as a candidate it is an art to giving an oral exam as a panelist.