1. Be Observant: This suggestion might seem quite obvious but all the things that you need to know to pass the exams will be offered during the course. You need to work on your listening skills and pay close attention during your classes. If you are on a good security course with competent trainers, it will be a completely different experience something you will cherish for a lifetime. You will still need to put extra effort in for developing concentration and take notes on a regular basis.