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

Big Data Interview Questions

Questions Answers Views Company eMail

How is big data analysis helpful in increasing business revenue?

534

Can you define a combiner?

512

Can you explain the core methods of a reducer?

509

Can you define taskinstance?

537

Explain the responsibilities of a data analyst?

539

Explain how do “reducers” communicate with each other?

507

Can you define big data analytics?

538

How do big data solutions interact with the existing enterprise infrastructure?

475

What are the important tools useful for big data?

564

Can you define data lake?

499

Can you define a udf?

556

Why big data use?

575

Can you define oozie?

520

Can you explain ingestion in big data?

560

What is difference the between sqoop and distcp?

Un-Answered Questions { Big Data }

what factors the block size takes before creation?

1034

What is the purpose of Sqoop List Tables?

How would you restart NameNode?

422

Is it possible to overwrite Hadoop MapReduce configuration in Hive?

715

What is vectorized query execution?

316

What does serdes mean in apache kafka?

598

Explain the Reducer's Sort phase?

884

What do you know about the case sensitivity of apache pig?

456

What is NameNode and DataNode in HDFS?

Which is the best spark certification?

289

Why is output file name in Hadoop MapReduce part-r-00000?

629

How to optimize Hadoop MapReduce Job?

632

What is the data storage component used by Hadoop?

620

What does name-node mean in hadoop?

475

Who invented hadoop?

685

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