These are practice exams for all endorsements available for Class A CDL. You will be given 50 random questions, just like the real exam. Each time you re-attempt the exam, it will be different every time.
Pre-tests are assigned in class, or prior to a class as a measure of current knowledge, before and formal instruction.
You may take the PRACTICE exams as often as you like, and the grades will never count against you.
You may only take the FINAL Exam up to two (2) times, but only when instructed to do so, as they are password protected.