Mfoundi Local Free Classifieds

Spark Interview Questions and Answers Q.What is the difference between Spark and Hadoop? Answer: 1.Speed: Apache Spark: Spark is lightning fast cluster computing tool. Apache Spark runs applications up to 100x faster in memory and 10x faster on disk than Hadoop. Because of reducing the number of read/write cycle to disk and storing intermediate data in-memory Spark makes it possible. Hadoop MapReduce – MapReduce reads and writes from disk, as a result, it slows down the processing speed. Difficulty: Apache Spark – Spark is easy to program as it...