Daily Archives: April 28, 2014

Hadoop Interview Questions and Answers Part – 3 2

Below are a few more hadoop interview questions and answers for both freshers and experienced hadoop developers and administrators. Hadoop Interview questions and answers 1. ¬†What is a Backup Node? It is an extended checkpoint node that performs checkpointing and also supports online streaming of file system edits. It maintains an in memory, up-to-date copy of file system namespace and accepts a real time online stream of file system edits […]