You can, but not necessarily right away. There is a seven day waiting period for each of the first two retakes and then after that if you still would like to retake the test there is a 30-day waiting period between each retake. If you have decided to take the test for the first time before watching the course all the way through, then you can retake the test again as soon as you have watched the course all the way through.
So retaking tests works like this:
- First take at any time
- Retake available after 12 hours