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 ?

381

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

398

What does block mean?

402

What do you think about the speculative execution?

399

What did mean by data-node?

392

How to use combiner in hadoop ?

409

Mention what is the data storage component used by hadoop?

406

Mention what does the text input format do?

381

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

441

Explain what is namenode in hadoop?

401

Explain what is a sequence file in hadoop?

424

Mention how many inputsplits is made by a hadoop framework?

533

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

369

Explain is it possible to search for files using wildcards?

428

Explain what is hadoop?

402

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Un-Answered Questions { Hadoop General }

How do you overwrite replication factor?

412

Can you give some examples of Big Data?

422

Can we create a hadoop cluster from scratch?

395

What are the main components of hadoop?

393

For using hadoop list the network requirements?

424

According to IBM, what are the three characteristics of Big Data?

397

Explain Erasure Coding in Hadoop?

463

Explain the Single point of Failure in Hadoop?

437

Can we change the file cached by distributed cache

392

Which scala library is used for functional programming?

413

Explain what is a sequence file in hadoop?

424

What is Disk Balancer in Hadoop?

453

What is the difference between TextinputFormat and KeyValueTextInputFormat class?

465

What happen if number of reducer is set to 0 in Hadoop?

464

List out the some common problems faced by data analyst?

377

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