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  1. Categories >> Software >> Big Data >> Hadoop >> Hadoop General
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Hadoop General Interview Questions
Questions Answers Views Company eMail

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

 526

What are the configuration files in Hadoop?

 575

Compare Apache Hadoop and Apache Spark?

 474

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

 581

Explain how Hadoop cluster hardware planning and provisioning is done?

 595

How to create a user in Hadoop?

 527

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

 521

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

 573

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

 554

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

 634

What is JPS? Why is it used in Hadoop?

 578

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

 525

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

 588

Ideally what should be replication factor in a Hadoop cluster?

 550

What is NameNode? How NameNode tackle Datanode failures in Hadoop?

 498

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Un-Answered Questions { Hadoop General }

How to create the directory when name node is in safe mode?

600

What is pseudo-distributed mode?

646

What is the procedure for namenode recovery?

489

Explain Erasure Coding in Hadoop?

541

What are the port numbers of namenode?

467

Do we require two servers for the namenode and the datanodes?

554

Define a sequence file in hadoop?

578

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

639

List Hadoop’s three configuration files?

454

What is the difference between a hadoop database and relational database?

490

What is the difference between namenode and datanode in hadoop?

536

What are the functionalities of jobtracer?

458

Give me the examples of Columnar database ?

622

Why do we need Hadoop?

564

How many daemon processes run on a hadoop cluster?

492

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