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?

889

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

542

What are the configuration files in Hadoop?

590

Compare Apache Hadoop and Apache Spark?

495

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

597

Explain how Hadoop cluster hardware planning and provisioning is done?

620

How to create a user in Hadoop?

547

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

541

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

587

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

570

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

648

What is JPS? Why is it used in Hadoop?

595

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

542

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

603

Ideally what should be replication factor in a Hadoop cluster?

567

Un-Answered Questions { Big Data }

Is spark better than mapreduce?

293

How will you consume CSV file into the Hive warehouse using built SerDe?

850

Which port does SSH work on?

447

What are Prerequisites to learn Avro?

What are the limitations of the Pig?

613

Can you explain record reader?

477

What does the high availability of a name-node means? How is it accomplished?

459

What are the config properties of presto?

Kafka has written in which languages?

590

What happens if you don?t override the mapper methods and keep them as it is?

524

Please explain apache kafka?

592

Explain the hadoop configuration files at present?

715

Do we need to install scala for spark?

325

What is apache spark core?

313

What is spark architecture?

286

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