[m0atz]

I agree with some of the comments about effectively being able to play the exam game. That said, some courses I've seen have offered extra credit, and distinction grades, if certain extra work is undertaken which is not simply guessing exam questions multiple times. Such an example is Cryptography by Prof Katz which is part of the Cybersecurity specialisation. You can pass the course by playing the system, but to do well you need to write code to crack crypto systems. Not something everyone is capable of and offers a different perspective on the overall result. I've done several coursera courses and they've landed me some pretty decent jobs. Just depends on how You sell them :-)