When you took your class you had to absorb a lot of information in a very short class. I have found in conversing with students both my own and others that somehow facts and concepts become distorted and confused over time.
Utah concealed carry laws even change over time so things could just be different now. Since you decided to get the Utah permit you should take the responsibility to stay up to date.
I suggest asking your instructor or even better a different instructor to allow you to sit in on their class 6 to 9 months after you get your permit. This will help you solidify the information!
Jacob S Paulsen