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

Big Data Interview Questions

Questions Answers Views Company eMail

Why is Apache Spark faster than Apache Hadoop?

1 893

What are the main features and Characteristics of Hadoop which makes it the most popular and powerful Big Data tool?

1 542

What are the configuration files in Hadoop?

1 593

Compare Apache Hadoop and Apache Spark?

1 498

What are the different modes in which we can configure/install Hadoop?

1 600

Explain how Hadoop cluster hardware planning and provisioning is done?

1 622

How to create a user in Hadoop?

1 550

What are the major differences between Hadoop 2 and Hadoop 3?

1 545

What is single node cluster in Hadoop? for what all purposes Hadoop run on a single node cluster?

1 589

How to specify more than one path for storage in Hadoop?

1 570

What is a single point of failure in Hadoop 1 and how is it resolved in Hadoop 2?

1 652

What is JPS? Why is it used in Hadoop?

1 599

What is the key difference between NameNode and DataNode in Hadoop?

1 546

What is Small File Problem in Hadoop? How can it be resolved?

1 605

Ideally what should be replication factor in a Hadoop cluster?

1 570

Un-Answered Questions { Big Data }

When we are using queries instead of scripting?

778

What is the roadmap for apache driver version one.0?

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

What is the roadmap for apache mahout version 1.0?

Give me the examples of Columnar database ?

641

What is meant by Transformation? Give some examples.

328

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

517

What is the stable version of Hive ?

2673

What are the different types of tables available in Hive?

745

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

518

When to choose "External Table" in Hive?

847

When to use explode in Hive?

803

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

Explain how RDDs work with Scala in Spark

355

How to set property in apache tajo?

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