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 type of data hadoop can handle ?

425

What does the high availability of a name-node means?

427

What does block mean?

438

What do you think about the speculative execution?

436

What did mean by data-node?

427

How to use combiner in hadoop ?

445

Mention what is the data storage component used by hadoop?

446

Mention what does the text input format do?

414

Mention what daemons run on a master node and slave nodes?

469

Explain what is namenode in hadoop?

438

Explain what is a sequence file in hadoop?

467

Mention how many inputsplits is made by a hadoop framework?

577

Explain what is jobtracker in hadoop? What are the actions followed by hadoop?

407

Explain is it possible to search for files using wildcards?

478

Explain what is hadoop?

434

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Un-Answered Questions { Hadoop General }

What is Mapper in Hadoop?

555

What is replication factor?

432

Can you explain bloommapfile.

453

What is heartbeat in hadoop?

426

What is Rack Awareness? What is its need in Hadoop?

532

How NameNode tackle Datanode failures in Hadoop?

463

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

449

What do you know about yarn?

413

What is the use of cloudera?

448

What are input format, input split & record reader and what they do?

623

What is difference between secondary namenode, checkpoint namenode & backupnode?

468

What daemons run on master nodes?

485

Can you explain logistic regression?

411

What is streaming in Hadoop?

436

Doesn’t google have its very own version of dfs?

481

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