It was a good start of the course material and how to deal with attacks

Google makes the best courses

This segment is bugged and has prevented me from obtaining my diploma for over 4 months now. Coursera and Google cannot be reached to fixed this issue, or when they are, they state that they will get back to us. Extremely disappointed.

Absolutely Horrible! The lab doesn't work. It needs updates. So I update it on my own, but after following the instructions, I cannot finish the final task. It doesn't work. This SUCKS! It's just a waste of time.

Lab's Explain not clear and a few of sample picture it make me renew many time. When I need help no channal for contact it is poor servive