General plugins (Local): Create demo quiz
This module creates copy of quiz with random questions selects some questions and puts them in place of random. So, students may try-out this quiz many times, but will allways see the same questions, so your full question bank will be secured until examination.
After plugin install quiz navigation node will be extended with "Create demo of this quiz" item. Press it, and fill in name for new quiz. Demo quiz will appear in course right after source quiz.