Map Reduce Interview Questions and Answers What is Map Reduce? Map Reduce is a java based programming paradigm of Hadoop framework that provides scalability across various Hadoop clusters How Map Reduce works in Hadoop? MapReduce distributes the workload into two different jobs namely 1. Map job and 2. Reduce job that can run in parallel. The Map job breaks down the data sets into key-value pairs or tuples. The Reduce job then takes the output of the map job and combines …