The Moodle Quiz Feature
Moodle quizzes permit a variety of questions types. The quiz featured here permits two attempts at the quiz and records the highest score in the grade book.
When you open a quiz, you will see an introductory screen something like this:
After you click "Attempt quiz now," you will see the questions:
As you can see in the picture above, you can save your answers without submitting them. This allows you to think about your answers before you commit to them.
After you submit your quiz, you will see a summary of your attempt. The system tells you which questions you answered correctly and incorrectly. It even highlights the correct answers in green: