Did you mathematically count which questions were covered or something?

I passed that test without much difficulty. Usually, the questions on the test are not the same exact information as is on Instacert, but typically, the information on Instacert is enough to enable you to make many of what I would term "highly educated guesses." If your goal is to have a thorough understanding of a subject, this probably isn't the medium for you. But, of course, neither is a standard college class, if you ask me. I've gotten A's in subjects in college and really had to put almost zero effort into it. My dad reports the same was true back when he was in college and that he'd often study for a test, pass it, and have no real clue about the subject a week later.

College is a big sham to me, which is why I'm happy to test out of it as much as possible so I can have my piece of paper that says, "Look employers and grad schools! I know something!" :-P