Hadoop General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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?

489

What are the configuration files in Hadoop?

541

Compare Apache Hadoop and Apache Spark?

445

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

542

Explain how Hadoop cluster hardware planning and provisioning is done?

555

How to create a user in Hadoop?

489

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

480

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

540

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

506

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

587

What is JPS? Why is it used in Hadoop?

525

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

488

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

538

Ideally what should be replication factor in a Hadoop cluster?

518

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

468

Post New Hadoop General Questions

Un-Answered Questions { Hadoop General }

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

461

What is replication factor?

431

Why cloudera is used?

476

Why does one remove or add nodes in a Hadoop cluster frequently?

694

What is the role of the secondary namenode?

441

List Hadoop’s three configuration files?

421

How can native libraries be included in yarn jobs?

482

What is 'jps'?

422

Are job tracker and task trackers present in separate machines?

462

How can one write custom record reader?

486

what happens when namenode goes down during file read operation in hadoop?

591

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

420

How will you write a custom partitioner for a Hadoop job?

453

What is Mapper in Hadoop?

555

What did mean by data-node?

427

For More Un-Answered { Hadoop General } Questions Click Here