Hadoop is an open-source software framework that stores massive amounts of data. It runs applications on clusters of commodity hardware. Hadoop can hand virtually unlimited concurrent jobs or tasks. Hadoop also provides a vast amount of storage space for any data. Big data & Hadoop have excellent processing power. Especially in the energy industry, analytics powered by Hadoop is used for predictive maintenance. It feeds data into big data programs, with input from the Internet of Things(IoT) . The demand for Hadoop experts is steadily on the rise. The Common question arises on how to prepare for a Hadoop interview or Hadoop admin interview. So, it is a brilliant idea…