A review is a copy of your last examination. You may not change your answers on the review, it is for your own personal study benefit.
No, you will be shown only the questions that you answered incorrectly.
No, your review will not be graded, it is for your study benefit. You will have to reschedule for another exam.
After you have failed an exam. We recommend you schedule for a review a few days before your exam retake or on the same day as the retake.
Half the time of a regular examination session. If your test is 3 hours, the review will be 1½ hours.