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 LazyOutputFormat in Hadoop?

1 551

What is Identity reducer?

1 586

What is Chain Mapper?

1 626

What are the core methods of a Reducer?

1 575

What are the parameters of mappers and reducers?

1 548

What is the difference between TextinputFormat and KeyValueTextInputFormat class?

1 563

How is the splitting of file invoked in Hadoop ?

1 595

How many InputSplits will be made by hadoop framework?

1 546

Explain the usage of Context Object?

1 542

Define Cassandra?

1 110

What are the parameters used to create a keyspace?

1 130

Describe Network Topology Strategy?

1 155

Give the difference between Drop and Truncate in CQLSH?

1 95

How can a user get the information on the version of CQLSH?

1 108

Define Simple Strategy?

1 172

Un-Answered Questions { Big Data }

How you can contact your client everyday ?

1016

What is the roadmap for apache mahout version 1.0?

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

When to use explode in Hive?

803

Explain how RDDs work with Scala in Spark

360

What is the latest version of spark?

292

Give me the examples of Columnar database ?

641

How can I delete the above index named index_bonuspay?

777

Where does the data of a Hive table gets stored?

718

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

836

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

How do I set up flume agent?

How job tracker schedules an assignment?

474

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1059

What is meant by Transformation? Give some examples.

334

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