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Hadoop General Interview Questions
Questions Answers Views Company eMail

What is Identity reducer?

522

What is Chain Mapper?

558

What are the core methods of a Reducer?

511

What are the parameters of mappers and reducers?

489

What is the difference between TextinputFormat and KeyValueTextInputFormat class?

508

How is the splitting of file invoked in Hadoop ?

535

How many InputSplits will be made by hadoop framework?

492

Explain the usage of Context Object?

476

List Hadoop’s three configuration files?

421

What is Distributed Cache in Hadoop?

457

What is the relationship between Jobs and Tasks in Hadoop?

617

Who are ‘Data Scientists’?

415

Tell me some major benefits of Hadoop?

408

What is structured and unstructured data?

446

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

435


Post New Hadoop General Questions

Un-Answered Questions { Hadoop General }

Explain InputSplit in Hadoop?

460


What is Fault Tolerance?

533


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

540


How is the splitting of file invoked in Hadoop ?

535


Give me examples of unstructured data?

479


Give examples of some companies that are using Hadoop structure?

440


How many InputSplits will be made by hadoop framework?

492


What is Chain Mapper?

558


Which directory does hadoop install to?

485


What is job tracker in Hadoop?

500


What is the job tracker role in hadoop?

426


What is winutils hadoop?

430


What happen on the namenode when a client tries to read a data file?

461


While starting hadoop services, datanode service is not running?

439


Mention how many inputsplits is made by a hadoop framework?

577