Our regular Challenge Bank™ automatically collects your missed questions so you can revisit them anytime and learn from your mistakes. Premium customers now have access to an advanced version ("Challenge Bank™ Booster") that uses sophisticated machine learning algorithms to suggest new questions *topically related* to the ones in your Challenge Bank™.
This helps learners take a deeper dive into the more complex topics that they struggle with. Similarly-worded questions around the same topic help reinforce retention and ensure you'll be prepared if you get such questions on the exam, even if they are worded differently.
How does it work?
Take Premium practice tests as you normally would.
At any point, visit the Challenge Bank™ and attempt any of your questions there.
Once you've provided an answer, click "Show me more questions like this". That will add several related questions to your Challenge Bank™. You'll see them next.