Whoops, I didn't do too much research. I actually thought I linked to that CS-specific exam. I think these look rather hard! (I'm even a last year Bachelor student in Math/CS.)
I'm glad I'm not the only one who thinks this looks difficult. As someone who studied pure undergraduate CS (the course only included a couple of relatively basic maths units) in the UK, I feel I'd have to do a fair amount of self-study before attempting this exam (even the CS-specific exams are quite tough!).