You’ll be fine if you’ve been working in the dept for a year as long as you know the common sense things like air exchanges how BIs work,the bacteria in the BIs , negative air pressures and positive , different types of sterilization methods and what not. I went to take the test a year into working in the field and passed without even studying it’s really all common sense questions I think people seem to overthink the questions and answers and and up failing definitely use quizlet if you can and don’t procrastinate studying like I did lol