No.
You can start and stop whenever you like, and resume later. The system automatically records all your progress and saves it on our servers. When you login next time, you can resume your course from where you left, even from a different device than the one you started with.
Try to allow at least 20-40 minutes to complete each section and the assessment, in an environment where you know you won’t be interrupted and can focus on your study.
Please be informed that upon enrollment, you have 3 months to complete the course.