@Artem Ervits, Thanks for the replies. You have provided valuable information. For this project I have to stick with the requirements using Amazon technologies or chose for my school project another option which does not involve any of these technologies (that's the reason I want to chose this option using MapReduce, Clouds and etc). I am planning and am looking to work in the field of Data Mining. I have been checking and notice that, as you mentioned, that are companies using Apache Spark and etc. For the language part, I noticed too that Java is the way to go. When I asked previously to my Professor what is the "top" language when working with Data Mining and he answered as follows: " Depending on a professional's background, top data mining languages may vary. For a professional with a computer science background, Java/SQL or Python is favored. For a professional with a Statistics background, R is favored. For a professional with an engineering background, Matlab is favored. Keep in mind that data mining is everywhere and people with divers background are working in this hot field. " Thanks again for your valuable information. ... View more