When I got my license quite a few years back, I was not a very good student. I hated hated hated studying. Never studied. I was lucky to make it out of HS alive. Anyway, when I turned 16 I got my Learner's Permit, and with that the little blue book. The one with all the rules. I studied that thing inside and out. By the time I turned 16 1/2 and was eligible to get my license, I knew the questions and answers literally word for word. During the oral exam, the guy would ask the questions, and of I course I would recite the answers, word for word. He was impressed. Then he asked me if I knew what the questions/answers actually meant. Fortunately, I did.
I got 100% on the test.