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Hadoop Interview Questions
Questions Answers Views Company eMail

Mention how many inputsplits is made by a hadoop framework?

 540

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

 376

Explain is it possible to search for files using wildcards?

 437

Explain what is hadoop?

 408

Explain what is sequencefileinputformat?

 419

Mention how hadoop is different from other data processing tools?

 379

Mention what are the most common input formats defined in hadoop?

 418

Mention what is rack awareness?

 359

Mention what is the difference between an rdbms and hadoop?

 393

Mention what are the three modes in which hadoop can be run?

 395

Explain how does hadoop classpath plays a vital role in stopping or starting in hadoop daemons?

 583

Explain what is storage and compute nodes?

 483

Explain how jobtracker schedules a task?

 438

Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?

 401

What happens in text format?

 418

Un-Answered Questions { Hadoop }

What is active and passive NameNode in HDFS?

226

Is hadoop based on google mapreduce?

641

What is a rack?

391

What problem does Apache Pig solve?

752

What is a UDF in Pig?

701

What do you understand by the super column in cassandra?

71

What roles do Replicas and the ISR play?

509

what is Bloom Filter is used for in Cassandra?

109

How does pig work?

562

Explain how to write the output into a file using storm?

513

Can I do trforms or add new functionality?

77

Define sparksession in apache spark? Why is it needed?

265

What are the network requirements for using hadoop?

645

How message is consumed by consumer in kafka?

454

What are the steps involved in MapReduce framework?

938

For More Un-Answered { Hadoop } Questions Click Here