Hadoop General Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Hadoop General Interview Questions

Questions Answers Views Company eMail

Which port does SSH work on?

432

Is there another way to check whether Namenode is working?

456

What is the NameNode port number?

432

Give me an example of document database ?

529

What is the characteristic of streaming API that makes it flexible run MapReduce jobs in languages like Perl, Ruby, Awk etc.?

487

What are the four modules that make up the Apache Hadoop framework?

593

How does job tracker schedule a job for the task tracker?

489

What is 'jps'?

466

Explain about Hadoop file system and processing framework?

462

How Hadoop is cost-effective?

450

What does the mapred.job.tracker command do?

472

Is it possible to rename the output file, and if so, how?

501

What are the Hadoop features extended to its eco-system components ?

481

What is job tracker in Hadoop?

541

What sorts of actions does the job tracker process perform?

468

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Un-Answered Questions { Hadoop General }

What are the actions followed by hadoop?

503

What sorts of actions does the job tracker process perform?

468

Can we deploye job tracker other than name node?

691

How to add/delete a Node to the existing cluster?

565

What is a rack?

456

What are the side data distribution techniques?

526

How does job tracker schedule a job for the task tracker?

489

Give me an example of document database ?

529

Compare Apache Hadoop and Apache Spark?

474

If no custom partitioner is defined in Hadoop then how is data partitioned before it is sent to the reducer?

498

Why do the nodes are removed and added frequently in a hadoop cluster?

503

What are the primary phases of the reducer?

487

List out the different stream grouping in apache storm?

424

Clarify what webdav is in hadoop?

505

Which scala library is used for functional programming?

492

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