My personal experience on the test was:
30 questions you have seen before
15 questions are common sense. No sweat
15 questions.......crap shot.... Had no idea what the answer was ( it always came down to 2 options but I did not know which would be the "most correct"). Out of the last 15 I dont know how many I got it right.
Got the CJO. But all of us came out thinking we blew the interview on the test. Im my opnion this is the chance of a lifetime. We all got frustated because we knew that there were some questions that we missed, and there was a lot at stake.
You will miss a couple questions. Just keep studying what everyone has suggested and you will be fine.
Good luck.