A question pool is a feature that allows you to create a collection of questions based on any number of criteria such as topic, question type, or difficulty.
Pools are most effective when you have large numbers of questions contained in a single group.
You may decide to create one question pool containing only true false questions, and another with only multiple choice questions. Then on the final exam, you could draw questions randomly from both pools.
Please see the subordinate pages on the left for more information.