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 Identity reducer?

473

What is Chain Mapper?

497

What are the core methods of a Reducer?

466

What are the parameters of mappers and reducers?

446

What is the difference between TextinputFormat and KeyValueTextInputFormat class?

465

How is the splitting of file invoked in Hadoop ?

479

How many InputSplits will be made by hadoop framework?

457

Explain the usage of Context Object?

431

List Hadoop’s three configuration files?

390

What is Distributed Cache in Hadoop?

412

What is the relationship between Jobs and Tasks in Hadoop?

584

Who are ‘Data Scientists’?

377

Tell me some major benefits of Hadoop?

371

What is structured and unstructured data?

413

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

397

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Un-Answered Questions { Hadoop General }

Can we create a hadoop cluster from scratch?

395

Give me the examples of Columnar database ?

528

What does hadoop-metrics.properties file do?

488

What is the best practice to deploy the secondary name node?

417

What is the difference between TextInputFormat and KeyValueInputFormat class?

456

How many InputSplits will be made by hadoop framework?

457

What are 'slaves' and 'masters' in Hadoop?

379

Explain Erasure Coding in Hadoop?

463

What is Chain Mapper?

497

What is the use of cloudera?

397

What is Balancer in Hadoop?

430

What are the side data distribution techniques?

438

How to specify more than one path for storage in Hadoop?

459

Who are ‘Data Scientists’?

377

What do you understand by a closure in scala?

449

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