Just took ccrn and failed it I used pass ccrn cd and was getting 80-85% on it so thought I was prepared. I was wrong what the cd concentrated on wasn't on the exam. It was harder than expected. Thinkin of taking it again but wondering if anyone know the chances of getting the same test. How does it work how many formats of test are there. Wasn't like I bombed it but I found myself guessing a lot. Now I can't face my coworkers help ?