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Hadoop Interview Questions
Questions Answers Views Company eMail

Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?

 1119

What is difference between regular file system and HDFS?

 1099

What is rack-aware replica placement policy?

 1068

What is Hadoop?

 1 1690

Are Namenode and job tracker on the same host?

 1493

What are the limitations of Hive?

 1071

Which company initially developed Hive ?

 1 2493

What is column families? What happens if you alter the block size of ColumnFamily on an already populated database?

 1142

What are the components of Hive architecture?

 1157

What is HDFS Federation?

 1030

What are watches?

 1066

Explain the Job OutputFormat?

 1000

Virtual Box & Ubuntu Installation?

 1048

What is the difference between HDFS and NAS ?

 1420

How Mapper is instantiated in a running job?

 1034

Un-Answered Questions { Hadoop }

What is the difference between CREATE TABLE AND CREATE EXTERNAL TABLE?

746

What is a pipelinedrdd?

450

Mention what are the data components used by Hadoop?

693

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

461

Can impala be used for complex event processing?

169

Mention what is the benefits of apache kafka over the traditional technique?

657

What are the different life cycle commands in ambari?

73

What are the different math functions available in Pig?

558

How will you merge the contents of two or more relations and divide a single relation into two or more relations?

969

What is graph db?

77

Can you explain spark core?

280

Which language is not supported by spark?

347

Why MapReduce uses the key-value pair to process the data?

683

How does yarn work with spark?

302

What is inputsplit in hadoop? Explain.

837

For More Un-Answered { Hadoop } Questions Click Here