What is the difference between course length and duration description of the course says course length - 2 weeks duration - 6 weeks?

Course length refers to the total time allocated for completing the course, which in this case is 2 weeks. Duration, however, indicates the overall timeframe in which the course is available or spans, which is 6 weeks. This suggests that while the coursework may be designed to be completed in 2 weeks, students have a total of 6 weeks to finish it, possibly allowing for flexibility or additional study time.