Below are few mapreduce interview questions and answers pdf practical questions which can be asked to a Senior Experienced Hadoop Developer in an interview. I hope you will find them useful. The Hadoop ecosystem is huge and involves many supporting frameworks and tools to effectively run and manage it.
This article focuses on the core of Hadoop concepts and its technique to handle enormous data. Below list of hadoop interview questions and answers that may prove useful for beginners and experts alike. There is only One Job Tracker process run on any hadoop cluster. Job Tracker runs on its own JVM process. In a typical production cluster its run on a separate machine.