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Big Data Interview Questions
Questions Answers Views Company eMail

Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?

 1 711

Explain what is storage and compute nodes?

 1 603

Explain how jobtracker schedules a task?

 1 566

Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?

 1 532

What happens in text format?

 1 552

Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?

 1 546

Explain what is a task tracker in hadoop?

 1 566

Explain what is speculative execution?

 1 518

Explain what happens in text format?

 1 666

Mention what is distributed cache in hadoop?

 1 527

Explain how can you debug hadoop code?

 1 562

Explain how can you check whether namenode is working beside using the jps command?

 1 548

Explain what is webdav in hadoop?

 1 627

Mention what job does the conf class do?

 1 518

For using hadoop list the network requirements?

 1 573

Un-Answered Questions { Big Data }

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

621

What is the latest version of spark?

343

How do I set up flume agent?

145

Where does the data of a Hive table gets stored?

750

What is the roadmap for apache mahout version 1.0?

98

When to use explode in Hive?

832

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

881

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

1077

How you can contact your client everyday ?

1042

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

552

When we are using queries instead of scripting?

801

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

859

Which modes can Hadoop be run in? List a few features for each mode?

542

State some DDL Command with brief Description?

61

What is meant by Transformation? Give some examples.

385

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