Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

What is NameNode? How NameNode tackle Datanode failures in Hadoop?

1 514

How often DataNode send heartbeat to NameNode in Hadoop?

1 598

What is Mapper? How can we compress Mapper output in Hadoop?

1 572

What is Rack Awareness? What is its need in Hadoop?

1 584

What is Erasure Coding in Hadoop?

1 561

Why do we need Hadoop Archives? How is it created?

1 618

What is Slot in Hadoop v1? Why was it removed from Hadoop v2?

1 565

What is CAP Theorem? What aspects does Hadoop support from this theorem?

1 540

Why do we need Hadoop?

1 580

What are the core components of Hadoop?

1 577

What are the Features of Hadoop?

1 582

Compare Hadoop and RDBMS?

1 470

What are the modes in which Hadoop run?

1 570

What are the features of Standalone (local) mode?

1 656

What are the features of Pseudo mode?

1 564

Un-Answered Questions { Big Data }

How you can contact your client everyday ?

1013

Where does the data of a Hive table gets stored?

718

What is the roadmap for apache driver version one.0?

How to skip header rows from a table in Hive?

872

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

518

Which modes can Hadoop be run in? List a few features for each mode?

517

Can We Change settings within Hive Session? If Yes, How?

836

What is the latest version of spark?

288

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

When to use explode in Hive?

803

List the advantage of Parquet file in Apache Spark?

474

Give me the examples of Columnar database ?

641

How can I delete the above index named index_bonuspay?

777

What is the latest version of sqoop?

What are the different types of tables available in Hive?

745

For More Un-Answered { Big Data } Questions Click Here