Don't forget that this implies a form of examination you are not used to, namely :

- open book, you have access to nearly the whole Internet and resources out of it, e.g. torrents of nearly all books, research paper, etc including the history of all previous tests include those similar to this one

- arguably basically no time limit as it's done at a scale of threads to parallelize access through caching ridiculously

- no shame in submitting a very large amount of wrong answers until you get the "right" one

... so I'm not saying it makes it "easy" but I can definitely say it's not the typical way I used to try to pass tests.