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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain the core components of hadoop?

1 706

Define streaming?

1 714

What is keyvaluetextinputformat?

1 780

Define a commodity hardware? Does commodity hardware include ram?

1 792

Explain the hadoop configuration files at present?

1 718

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

1 783

Explain why the name ‘hadoop’?

1 763

Define a combiner?

1 703

Explain the master class and the output class do?

1 696

Explain the features of stand alone (local) mode?

1 684

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

1 738

What is structured data?

1 700

Define streaming access?

1 711

Define fault tolerance?

1 711

What do sorting do?

1 728

Un-Answered Questions { Big Data }

What is the function of UNION and SPLIT operators? Give examples?

578

When we are using queries instead of scripting?

778

Where does the data of a Hive table gets stored?

718

State some DDL Command with brief Description?

How job tracker schedules an assignment?

473

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

What is the latest version of spark?

288

How can you import only a subset of rows from a table?

What is the roadmap for apache mahout version 1.0?

How to skip header rows from a table in Hive?

872

Give me the examples of Columnar database ?

641

What is the latest version of ambari that is available in the present market?

What is a Hive variable? What for we use it?

854

Explain how RDDs work with Scala in Spark

355

How can I delete the above index named index_bonuspay?

777

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