A Quiz is a survey designed for student assessment. The questions and choices have the same syntax as the Questionnaires which means you can have more than one questions in it. The only difference is that you can allocate certain points to each question and define a correct answer so that participants get the points if they choose the correct answer. In this type of survey, others can't see the quiz page before it starts and the wiki source is only visible and editable to you(the author). After the quiz finishes, you can check the answer of all students, and students can check their score by visiting the quiz page. Like a simple survey, this type of survey also provides some options in the advanced survey creation page. You can also change the options by editing the survey page before the survey starts.
Notice: You have to login to create a quiz.