You do all of them online.

I print out the exam and then bring up the course in either Adobe or MS Word. As I go through the exam questions on paper, I do key word searches in the course document to find the answer. I can finish the shorter exams in about 20 minutes and the longer ones in about a hour. Then I take my answers on the paper exam and transfer them to the online input exam. About 2 minutes later you get an e-mail that lets you know if you passed or not. If not...try again as many times as necessary.

Keep track of which exams you took.