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Topic :: Apache Hadoop





Apache Hadoop Interview Questions
Questions Answers Views Company eMail

Is YARN a replacement of Hadoop MapReduce?

 1 2108

Which interface needs to be implemented to create Mapper and Reducer for the Hadoop?

 1265

What is the Hadoop MapReduce API contract for a key and value Class?

 1357

What comes in Hadoop 2.0 and MapReduce V2 YARN

 1053

Can you overwrite Hadoop MapReduce configuration in Hive?

 956

Differentiate between Hadoop MapReduce and Pig?

 676

Hadoop uses replication to achieve fault tolerance. How is this achieved in Apache Spark?

 428

what is JobTracker in Hadoop? What are the actions followed by Hadoop?

 829

what is NameNode in Hadoop?

 945

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

 827

What is a "map" in Hadoop?

 841

What is a "reducer" in Hadoop?

 921

How is reporting controlled in hadoop?

 837

What is Hadoop Map Reduce ?

 861

In Hadoop, which file controls reporting in Hadoop?

 830



Related Topics


Un-Answered Questions { Apache Hadoop }

What is Apache Hadoop YARN?

1499

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

1048

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

969

What are the core components of Apache Hadoop?

829

What is the difference between Apache Hadoop and RDBMS?

856

How is security achieved in Apache Hadoop?

965

What is Apache Hadoop?

900

What is a “Distributed Cache” in Apache Hadoop?

824

What is the problem with small files in Apache Hadoop?

839

What is Rack Awareness in Apache Hadoop?

859

Explain Erasure Coding in Apache Hadoop?

803

What is Disk Balancer in Apache Hadoop?

953

What is a speculative execution in Apache Hadoop MapReduce?

834

What are the modes in which Apache Hadoop run?

840

What is Safemode in Apache Hadoop?

781