Hello Eliza!

The students who are not attending routine classes to the schools or colleges( due to some reason), they will giving only exams(no difference in question paper) and studying all the subjects by their own (no involment of school or colleges). Thus they get different certificate than the regular student(who attends classes).

But there is no difference what percentage they get at last it will be counted as same as regular student.

Hope it helps.

Thank you :)