when should 1 start prepping for one's exam .... i mean from how many month before?

Answer 1

Revise as you go along. Just a quick read through notes after every tutorial. This will make it so much easier to revise before your exam and is a good way of checking that you understand. Good luck!

Answer 2

Depends... most people say constantly. If you learn the material consistently and manage to retain it, you only have to study a day or week or two before. I usually would say one month, or as soon as the test is announced.

Answer 3

If you study as you go, you won't need to cram the information in.