Apache Hadoop Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

What is a block and block scanner in HDFS?

850

What is compute and Storage nodes?

842

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

819

How can you overwrite the replication factors in HDFS?

1048

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

814

Knox and Hadoop Development Tools?

755

In which location Name Node stores its Metadata and why?

1192

Is a job split into maps?

864

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

907

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

759

What are the site-specific configuration files in Hadoop?

850

On what basis data will be stored on a rack?

939

How is HDFS fault tolerant?

849

How to Administering Hadoop?

736

What are the main components of a Hadoop Application?

860

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Un-Answered Questions { Apache Hadoop }

What are the characteristics of hadoop framework?

489

Is hadoop open source?

546

What do masters consist of?

514

what factors the block size takes before creation?

795

What are the two main components of ResourceManager?

920

What does /var/hadoop/pids do?

1087

What is salary of hadoop developer?

528

What problems can be addressed by using Zookeeper?

789

What is structured data?

491

What is NoSQL?

762

What is the functionality of jobtracker in hadoop?

560

How many maximum jvm can run on a slave node?

523

What is a checkpoint?

803

How can you overwrite the replication factors in HDFS?

1048

Which data storage components are used by hadoop?

487

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