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

Big Data Interview Questions

Questions Answers Views Company eMail

Suppose hadoop spawned 100 tasks for a job and one of the tasks failed. What will hadoop do?

1 538

Which operating system(s) are supported for production hadoop deployment?

1 482

Can you explain speculative execution?

1 470

How do you overwrite replication factor?

1 517

Can you explain logistic regression?

1 488

Can you explain combiner?

1 502

List of some best tools that can be useful for data-analysis?

1 493

What is the best practice to deploy the secondary name node?

1 506

What are the tools used in big data?

1 497

Can you explain indexing?

1 501

Can you define a checkpoint?

1 560

Which language is more suitable for text analytics? R or python?

1 511

Can you explain commodity hardware?

1 475

How can native libraries be included in yarn jobs?

1 540

How to do ‘map’ and ‘reduce’ works?

1 635

Un-Answered Questions { Big Data }

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

591

When to use explode in Hive?

808

When to choose "External Table" in Hive?

851

How job tracker schedules an assignment?

478

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

What are the different types of tables available in Hive?

749

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

527

How do I set up flume agent?

104

State some DDL Command with brief Description?

What is the stable version of Hive ?

2677

What is meant by Transformation? Give some examples.

350

Where does the data of a Hive table gets stored?

727

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

How to set property in apache tajo?

Explain how RDDs work with Scala in Spark

377

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