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?

467

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

433

Can you explain commodity hardware?

406

How can native libraries be included in yarn jobs?

482

How to do ‘map’ and ‘reduce’ works?

572

Can you explain bloommapfile.

453

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?

458

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?

397

Can hadoop handle streaming data?

461

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

445

What do you know about yarn?

413

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Un-Answered Questions { Hadoop General }

Why can we not create directory /user/dataflair/inpdata001 when name node is in safe mode?

449

Specify what the information segments utilized by hadoop are?

438

What mode(s) can hadoop code be run in?

459

In which directory hadoop is installed?

406

Can you define a checkpoint?

467

Which port does SSH work on?

405

Mention what is the data storage component used by hadoop?

446

What kind of hardware is best for hadoop?

418

What is job tracker role in hadoop?

472

What is active and passive NameNode in Hadoop?

463

What is CAP Theorem? What aspects does Hadoop support from this theorem?

473

Can you explain sequence file in hadoop?

405

Give a brief overview of Hadoop history?

418

What do you mean by the NameNode High Availability in hadoop?

495

What are the features of Pseudo mode?

503

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