If you imported quiz questions into your course from a publisher or from a Word document, or created questions directly in the Question Bank, these questions live in the Question Bank. In order to be used, they need to be moved from the Question Bank into the appropriate quiz. There are two options: adding specific questions to the quiz, or adding random questions to the quiz. Adding random questions to a quiz means the system will randomly choose a designated number of questions from a specified category for each student. Depending on the number of questions in the category, this could mean students receive completely different questions for the same quiz.