It's a joke of course. Take some other course, do not loose time & money.
They do not teach either well and/or interesting things ond/or pedagogically well. The material for teaching is inexistent, no reference books that can help because they do not teach. They have done some "cut and paste" with too much cut => Gaps
The tools used, as for instance HIVE takes more than 5 hours for running a simple command. So if you male a couple of mistakes you lose a day.
No, this course is no serious.
I do not understand these people showing their incompetence for the whole word around (more or les 50 students per course)
And making us to lose our time and our money and illusion in this ways
The course team DO NOT PUT any hours of EFFORT into developing the course. No material, not good examples, not good exercises. The The tech are exercises that later you realize they are in the hadoop platform.
The team is not involved at all in he discussions.
They are doing some cut and paste from some where else or similar so suddenly they are doing some exercise that is the continuation of the exercice that was explained the previous week. But it is not true , we did not made that exercise!!! So
The assignments degree of difficulty/complexity are not related with the few "bla, bla, bla" they talk about in the course. So I had to spend many many many hours learning in internet what I had to know for completing the assignments. And of course because they did not answer to any of the students questions
The material offered for learning is no a joke is even worse.
I really recommend some other course NOT Coursera SAN DIEGO