Apache Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

Define streaming?

615

What is keyvaluetextinputformat?

692

Define a commodity hardware? Does commodity hardware include ram?

708

Explain the hadoop configuration files at present?

626

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

670

Explain why the name ‘hadoop’?

651

Define a combiner?

609

Explain the master class and the output class do?

616

Explain the features of stand alone (local) mode?

583

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

640

What is structured data?

599

Define streaming access?

622

Define fault tolerance?

610

What do sorting do?

646

What is nlineoutputformat?

642

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Un-Answered Questions { Apache Hadoop }

What is nlineoutputformat?

642

What is the difference between SQL and NoSQL?

1012

Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?

1010

How does master slave architecture in the hadoop?

763

What are the stable versions of Hadoop?

959

What is the port number for NameNode

801

Can Apache Kafka be used without Zookeeper?

983

What is HDFS - Hadoop Distributed File System?

920

What are different types of filesystem?

1094

what is SPF?

1473

What are the two main parts of the hadoop framework?

609

Explain the shuffle?

862

How to resolve IOException: Cannot create directory

972

What is the difference between rdbms and hadoop?

605

How to restart Namenode?

706

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