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

Hadoop General Interview Questions

Questions Answers Views Company eMail

Can you define a checkpoint?

471

Which language is more suitable for text analytics? R or python?

438

Can you explain commodity hardware?

414

How can native libraries be included in yarn jobs?

482

How to do ‘map’ and ‘reduce’ works?

576

Can you explain bloommapfile.

454

Why is checkpointing important in hadoop?

468

What happens when two clients try to access the same file in the hdfs?

455

What do you know about the speculative execution?

461

What are the differences between hadoop 1 and hadoop 2?

434

Why do the nodes are removed and added frequently in a hadoop cluster?

475

What is a namenode?

405

Can hadoop handle streaming data?

464

What is hadoop? Name the main components of a hadoop application?

445

What do you know about yarn?

414

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Un-Answered Questions { Hadoop General }

Explain the key benefits of using storm for real time processing?

431

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

547

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

417

What are some of the characteristics of Hadoop framework?

438

What are the actions followed by hadoop?

466

List of some best tools that can be useful for data-analysis?

431

Do we need to place 2nd and 3rd data in rack 2 only?

443

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

489

What is the relationship between Jobs and Tasks in Hadoop?

619

What is the procedure for namenode recovery?

454

Explain what is namenode in hadoop?

438

How to add/delete a Node to the existing cluster?

524

what if job tracker machine is down?

475

What is purpose of RecordWriter in Hadoop?

509

Explain in which directory hadoop is installed?

469

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