I went through Canadian system as well and that too the provincial one. I tried convincing them that this can be taken as an external system because all schools in the province are required to comply by the rules and regulations of their single board but unfortunately, they will take this as an internal examination system and that would lead to deduction of 20 percent of your final marks.

I believe external examination systems would lead to a lesser deduction compared to internal, so that is the only difference between the two, in my opinion.