No and the test is open book BUT you may want to practice the demonstration portion of the exam. At the end of the class you must demonstrate how to Stop, Slow, and Release traffic, this is 50% of your grade, if you fail this, you fail the class. It is not necessary to know the answers in the practice session before the class, the answers will be provided during the class.
You will have an opportunity to practice positioning the flagger again, after the course and right before the exam. You should focus on answering these correctly.
Make sure you have about 4-hours to complete the course and exam.