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 is the most widely recognized info formats characterized in hadoop?

431

Clarify what webdav is in hadoop?

471

Clarify how job tracker schedules an assignment?

419

What jobtracker is in hadoop? What are the activities followed by hadoop?

424

Clarify how ordering in hdfs is finished?

496

What a task tracker is in hadoop?

435

What webdav is in hadoop?

437

Specify what the information segments utilized by hadoop are?

438

Clarify what is sqoop in hadoop?

419

What does rack awareness algorithm means and why is it utilized as a part of hadoop?

433

What does rack awareness algorithm means?

490

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

417

What does name-node mean in hadoop?

475

What is check pointing in hadoop?

441

What does secondary name-node means?

427

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Un-Answered Questions { Hadoop General }

Give me an example of document database ?

476

What are the side effects of not running a secondary name node?

448

Ideally what should be the replication factor in hadoop?

426

Explain what is a task tracker in hadoop?

456

Can you explain rack awareness?

433

what if job tracker machine is down?

475

Why slaves limited to 4000 in hadoop version 1?

487

How to do ‘map’ and ‘reduce’ works?

572

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

468

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

540

Can we deploye job tracker other than name node?

659

What are the restriction to the key and value class ?

432

What are the core components of Hadoop?

508

What is streaming access?

496

How is security achieved in Hadoop?

523

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