I’m disappointed with getting only 85% for sure; but in my defence, I didn’t spend any time looking up answers I wasn’t 100% sure about, and a lot of the questions were very ambiguous / badly worded.

  Bit of a shame there was one very ambiguous question and one theoretical question I couldn’t be bothered to look up. I have now, and I’ll remember the next time – when competing on the Display Network, CPC bids are effectively converted to CPM (and not the other way round) :-)