Do the competitive quiz questions derive from the courses?

Question

I have completed the C# course.. but despite that I can't answer most of the questions asked in the competitive tests.
Some of them I could answer if I had more time to read and understand what their programs do.
I'm programming in C# on a daily basis.
Altough I'm a game Developer under training I wonder why I lag this much knowledge despite I use the language often, have completed the course and have knowledge on other languages also.
can someone point me in the right direction ?

Answer 1

I would suggest reading tutorials on C# on the net. The SL courses do not represent all the material that is available on the languages.

https://msdn.microsoft.com/en-us/library/aa288436(v=vs.71).aspx

Answer 2

Thank you, sir :-)
I'm driven by gaining knowledge in this particular area.