When taking an exam, it is essential to practice as much as possible. The amount of effort you put into your studying will determine the amount of time that you will put into the examination. Before you start, make sure that you have all the information about the passing grade.
There are different types of exams that you may need to take. For example, first years need to take an intermediate exam that involves programming and graphical analysis, second years will need to take an advanced exam that requires reading and writing the code, and senior students will need to take a test that requires all the information about programming languages. This is just a guide but these are the basic exams that you should take.
After you have gained some knowledge, you should read some tutorials that will help you learn some basic terms. I can see that there are so many tutorials online but you will need to be patient because you may need to search for a while before you find the right tutorial for you. The internet is full of tutorials, so it is important that you stay focused and organized.