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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

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

 444

Explain what is hadoop?

 463

Mention how hadoop is different from other data processing tools?

 445

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

 478

Mention what is the difference between an rdbms and hadoop?

 462

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

 458

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

 651

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

 473

Explain how is data partitioned before it is sent to the reducer if no custom partitioner is defined in hadoop?

 476

Explain what is a task tracker in hadoop?

 499

Mention what is distributed cache in hadoop?

 470

Explain how can you debug hadoop code?

 496

Explain what is webdav in hadoop?

 543

For using hadoop list the network requirements?

 507

Think that I am using tableau desktop & have a live connection to cloudera hadoop data I need to press f to refresh the visualization is there anyway to automatically refresh visualization every ‘x’ seconds instead of pressing f?

 414



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1490

What are the modules that constitute the Apache Hadoop 2.0 framework?

1041

What is Apache Hadoop? Why is Hadoop essential for every Big Data application?

955

What are the core components of Apache Hadoop?

815

What is the difference between Apache Hadoop and RDBMS?

840

How is security achieved in Apache Hadoop?

951

What is Apache Hadoop?

891

What is a “Distributed Cache” in Apache Hadoop?

809

What is the problem with small files in Apache Hadoop?

832

What is Rack Awareness in Apache Hadoop?

849

Explain Erasure Coding in Apache Hadoop?

791

What is Disk Balancer in Apache Hadoop?

939

What is a speculative execution in Apache Hadoop MapReduce?

821

What are the modes in which Apache Hadoop run?

828

What is Safemode in Apache Hadoop?

769