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 Hadoop’s CLASSPATH plays a vital role in starting or stopping in Hadoop daemons?

1 467

What are the different commands used to startup and shutdown Hadoop daemons?

1 597

What is configured in /etc/hosts and what is its role in setting Hadoop cluster?

1 594

How is the splitting of file invoked in Hadoop framework?

1 585

Is it possible to provide multiple input to Hadoop? If yes then how?

1 559

Is it possible to have hadoop job output in multiple directories? If yes, how?

1 499

What is the default replication factor and how will you change it?

1 597

Explain Hadoop Archives?

1 598

Explain the Single point of Failure in Hadoop?

1 527

Explain Erasure Coding in Hadoop?

1 564

What is Disk Balancer in Hadoop?

1 583

How would you check whether your NameNode is working or not?

1 461

Is Namenode machine same as DataNode machine as in terms of hardware?

1 523

If DataNode increases, then do we need to upgrade NameNode?

1 608

What happens if the number of reducers is 0 in Hadoop?

1 523

Un-Answered Questions { Big Data }

What is the stable version of Hive ?

2673

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

836

How to set property in apache tajo?

What is the latest version of spark?

288

When to use explode in Hive?

803

How can I delete the above index named index_bonuspay?

777

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

1059

When to choose "External Table" in Hive?

847

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

854

Give me the examples of Columnar database ?

641

State some DDL Command with brief Description?

How you can contact your client everyday ?

1013

What is the latest version of sqoop?

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

518

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

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