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Apache Hadoop Interview Questions
Questions Answers Views Company eMail

Define streaming?

698

What is keyvaluetextinputformat?

768

Define a commodity hardware? Does commodity hardware include ram?

774

Explain the hadoop configuration files at present?

696

Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

762

Explain why the name ‘hadoop’?

746

Define a combiner?

694

Explain the master class and the output class do?

687

Explain the features of stand alone (local) mode?

669

Name the examples of some companies that are using hadoop structure?

724

What is structured data?

688

Define streaming access?

702

Define fault tolerance?

695

What do sorting do?

715

What is nlineoutputformat?

714


Post New Apache Hadoop Questions

Un-Answered Questions { Apache Hadoop }

What are the limitations of importing RDBMS tables into Hcatalog directly?

990


What is HDFS block size and what did you chose in your project?

1014


How to change from su to cloudera?

766


Is it necessary to write jobs for hadoop in the java language?

711


What is Apache Hadoop YARN?

1492


What is Rack awareness?

1038


What if a namenode has no data?

703


What is difference between split and block in hadoop?

1432


what factors the block size takes before creation?

1087


What are active and passive "NameNodes"?

1506


Explain what happens in textinformat ?

784


What is Hadoop Custom partitioner ?

1043


How the HDFS Blocks are replicated?

1000


Rack awareness of Namenode?

909


How can I restart namenode?

756