Level of difficulty of the exam

Here during the training we were exposed to variety of topics, which were pretty advanced. Please let me know do I really need to grab a very deep knowledge, I mean ,knowledge beyond the stuffs whatever provided to us during the training to secure a good marks in the exam. I mean for concepts and good score,should I restrict myself to the training materials only, or to handle with the difficulty I must increase the horizon or I have to read more apart from BOLT STUDY MATERIALS.

Extra knowledge like water does not cause any harm but benefits, you can and if possible you must go in depth because then you will be able to out stretch the limits of this training and would be able to do a lot of stuff.
And talking about the exams don’t just restrict yourself to clearing the exams set some more higher goals bro.