Big Data. It is not important, you are not required to web-scrap some big size of data. Technologies.Yes, this is the point. You can learn mapReduce/Hadoop, recommendation systems, page ranks and all kinds of algorithms. They are really hard to understand and even harder to implement. So you are required to understand them to conquer the tests (people did get 0000 mark). Three programming labs + 3 online-tests + 2 open-book algo tests + 1 final team project. There are a lot of things to learn if you want and the Professor is great. Prepare: read all those algorithms in bid data areas.