Is it worth giving ccd-410 exam, as it focuses on map reduce and in few months apache spark will gain more importance.   "In the long term, though, we expect the number of cycles spent on MapReduce to diminish, and the fraction spent on new frameworks — Impala and Spark for sure — to increase. - See more at: http://vision.cloudera.com/mapreduce-spark/#sthash.BjZQOImL.dpuf" ... View more