Apache Hadoop Interview Questions
Questions Answers Views Company eMail

Define streaming?

371

What is keyvaluetextinputformat?

399

Define a commodity hardware? Does commodity hardware include ram?

439

Explain the hadoop configuration files at present?

363

Explain the difference between gen1 and gen2 hadoop with regards to the namenode?

389

Explain why the name ‘hadoop’?

380

Define a combiner?

354

Explain the master class and the output class do?

365

Explain the features of stand alone (local) mode?

355

Name the examples of some companies that are using hadoop structure?

386

What is structured data?

372

Define streaming access?

383

Define fault tolerance?

393

What do sorting do?

390

What is nlineoutputformat?

406


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Un-Answered Questions { Apache Hadoop }

Name the various types of lists supported by bootstrap.

396


Explain how is hadoop different from other data processing tools?

391


Can hive run without hadoop?

381


Define a commodity hardware? Does commodity hardware include ram?

439


Which are the two types of 'writes' in HDFS?

912






If a data Node is full how it's identified?

643


Define a metadata?

388


What is a block and block scanner in HDFS?

705


Is it necessary to know java to learn hadoop?

370


What are the important differences between apache and hadoop?

388


what is the typical block size of an HDFS block?

645


What do you know about nlineoutputformat?

389


What is the InputFormat ?

671


Why password is needed in ssh localhost?

391


How can you connect an application

710