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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?

 369

Explain what is hadoop?

 402

Mention how hadoop is different from other data processing tools?

 374

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

 411

Mention what is the difference between an rdbms and hadoop?

 386

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

 388

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

 577

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

 397

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

 403

Explain what is a task tracker in hadoop?

 391

Mention what is distributed cache in hadoop?

 401

Explain how can you debug hadoop code?

 434

Explain what is webdav in hadoop?

 474

For using hadoop list the network requirements?

 424

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?

 350



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1416

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

958

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

845

What are the core components of Apache Hadoop?

712

What is the difference between Apache Hadoop and RDBMS?

736

How is security achieved in Apache Hadoop?

833

What is Apache Hadoop?

800

What is a “Distributed Cache” in Apache Hadoop?

723

What is the problem with small files in Apache Hadoop?

725

What is Rack Awareness in Apache Hadoop?

745

Explain Erasure Coding in Apache Hadoop?

691

What is Disk Balancer in Apache Hadoop?

798

What is a speculative execution in Apache Hadoop MapReduce?

739

What are the modes in which Apache Hadoop run?

743

What is Safemode in Apache Hadoop?

677