This article gives advice on how to approach answering your exam questions once you are in the exam hall. It doesn’t address the practical business of getting ready for your exam or travelling to the exam centre. You may also want to look at techniques to manage exam stress and the important topic of revision.
Exam techniques need discipline - to allocate your time well during the exam and to use to best effect the knowledge you gained as you studied your module.
You aren't expected to know or remember everything in the module but you should be able to show your understanding of what you have studied.