MCCQE part 1 CDM scoring

[MEDSTAR28]

Hello, 

I understand that there are 3 different types of CDM questions: write in, choose up to X, and choose all that apply. 

For the write in and choose up to X, it's clear to me that if you go over the indicated number you get 0. But for example, if it says choose up 6, I select 6 answers but in reality there was only 1 correct answer (which was selected in my 6), do I get full marks? Same thing for the write in questions. Hope this was clear... (I am also aware that doing something harmful will also give 0 points). 

Thank you