You will have online access to the course for 90 days from the date of purchase regardless of whether you pass or fail the exam.  However, once you earn your certification, you will be provided with unlimited access to all course content.  To access the course videos for each certification you've earned, log in to Brainwaves and click on My Dashboard in the top navigation menu.  Then scroll to the bottom to see a list of product course videos grouped by each certification you've earned.