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  1. Categories >> Software >> Big Data >> Hadoop >> Apache Hadoop
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Apache Hadoop Interview Questions
Questions Answers Views Company eMail

What is a block and block scanner in HDFS?

 1030

What is compute and Storage nodes?

 1024

how would you modify that solution to only count the number of unique words in all the documents?

 973

How can you overwrite the replication factors in HDFS?

 1247

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

 1006

Knox and Hadoop Development Tools?

 927

In which location Name Node stores its Metadata and why?

 1393

Is a job split into maps?

 1036

What are different hdfs dfs shell commands to perform copy operation?

 1060

If a data Node is full how it's identified?

 937

What are the site-specific configuration files in Hadoop?

 1091

On what basis data will be stored on a rack?

 1140

How is HDFS fault tolerant?

 1037

How to Administering Hadoop?

 902

What are the main components of a Hadoop Application?

 1039

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Un-Answered Questions { Apache Hadoop }

How many maximum jvm can run on a slave node?

686

What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?

783

What is the difference between Hadoop and Traditional RDBMS?

923

What are the default configuration files that are used in hadoop?

691

What is the default block size in Hadoop 1 and in Hadoop 2? Can it be changed?

1328

What infrastructure do we need to process 100 TB data using Hadoop?

1005

What is cloudera and why it is used?

797

How to resolve small file problem in hdfs?

980

Is hadoop a database?

683

Is hadoop based on google mapreduce?

691

What is salary of hadoop developer?

690

Why are the number of splits equal to the number of maps?

961

How does an hadoop application look like or their basic components?

728

How we can take Hadoop out of Safe Mode?

855

Explain the overview of hadoop history breifly?

623

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