A Lot of the New York State Exams are multiple choice but there's usually extra things like essays and things you have to write out..
My English exam was 6 hours of 4 essays...
The AP Tests are much harder though...on an AP test you get penalized for random guessing on questions that are MC. They subtract .25 points off of your score for getting one wrong...So it's actually a better idea to accept you don't know it than to guess..
I had to take the AP Computer Science Exam...