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Apache Hadoop Interview Questions
Questions Answers Views Company eMail

How can we change the split size if our commodity hardware has less storage space?

618

How is hadoop different from other data processing tools?

617

What happens in a textinputformat?

608

Can you explain how do ‘map’ and ‘reduce’ work?

667

Can we call vms as pseudos?

621

What do the master class and the output class do?

622

What does job conf class do?

615

What do you know about keyvaluetextinputformat?

558

Define a namenode?

613

Explain the hadoop-core configuration?

628

Explain the benefits of block transfer?

760

Define a task tracker?

605

Define a metadata?

605

Define a daemon?

621

Explain the core components of hadoop?

610


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Un-Answered Questions { Apache Hadoop }

Explain Erasure Coding in Apache Hadoop?

692


Which data storage components are used by hadoop?

624


What are the problems with Hadoop 1.0?

991


What is speculative execution in Hadoop?

1019


Why is hadoop faster?

596


What is version-id mismatch error in hadoop?

1015


Is hadoop a memory?

651


What is hbase in hadoop?

605


Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?

1001


What is the difference between hadoop and other data processing tools?

632


Can hive run without hadoop?

633


What is a spill factor with respect to the ram?

812


Explain the benefits of block transfer?

760


Is hadoop obsolete?

588


On what basis Namenode will decide which datanode to write on?

1210