Paper was veryy tough and I don't think I'll pass, made the most stupid mistake, hope my mistake helps someone though. Mcqs were from mux, OSI, protocols, Nyquist, something about AMI(no clue what that is), but relatively easier. Short had formula of bandwidth Long(where I messed up) 5 components of data communication ?? I wrote characteristics here and 2nd one was about TDM and I skipped this topic so double ????