ONCC’s for-purchase Practice Tests now include 100 questions that are randomly selected each time you use a test. The random selection means that you’ll get a mix of questions each time you use the test – including some different questions – and a greater variety of practice test questions. The correct answer, reference, and rationale is provided for each question so you can understand the answer or learn more. Each Practice Test matches the current Test Content Outline for the related certification exam. Note: the free Practice Tests still include 50 questions that do not change with each usage. Learn more.