You can view the training questions and answers before fully committing to using the training credit.
As soon as you start a training, a credit is consumed. But the credit can be restored on the training Administration page by clicking on the employee that started the training, finding the training in the employees history, and clicking Delete Session button. So you can start any training you want, view the test questions and answers, and as long as you don't complete a module test, you are allowed to delete the training session.