Infosys – Hadoop Interview Questions
Here is the list of Hadoop Interview Questions which are recently asked in Infosys company. These questions are included for both Freshers and Experienced professionals.
- Why Hadoop? (Compare to RDBMS)
- What would happen if NameNode failed? How do you bring it up?
- What details are in the “fsimage” file?
- What is SecondaryNameNode?
- Explain the MapReduce processing framework? (start to end)
- What is Combiner? Where does it fit and give an example? Preferably from your project.
- What is Partitioner? Why do you need it and give an example? Preferably from your project.
- Oozie – What are the nodes?
- What are the actions in Action Node?
- Explain your Pig project?
- What log file loaders did you use in Pig?
- Hive Joining? What did you join?
- Explain Partitioning & Bucketing (based on your project)?
- Why do we need bucketing?
- Did you write any Hive UDFs?
- Filter – What did you filter out?
TOP MNC's HADOOP INTERVIEW QUESTIONS & ANSWERS
Here we listed all Hadoop Interview Questions and Answers which are asked in Top MNCs. Periodically we update this page with recently asked Questions, please do visit our page often and be updated in Hadoop .