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?

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

Post New Apache Hadoop Questions

Un-Answered Questions { Apache Hadoop }

when hadoop enter in safe mode?

744

What is Schema on Read and Schema on Write?

916

Is a job split into maps?

1036

What is a namenode? How many instances of namenode run on a hadoop cluster?

643

What are the port numbers of namenode, job tracker and task tracker?

712

What is the jobtracker?

633

What is the problem with small files in Apache Hadoop?

783

What are the characteristics of hadoop framework?

668

Hadoop Libraries and Utilities and Miscellaneous Hadoop Applications?

1069

What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?

1112

What is the InputFormat ?

1017

Which is the best hadoop certification?

670

What is difference between split and block in hadoop?

1396

Why password is needed in ssh localhost?

801

What are the benefits of block transfer?

994

For More Un-Answered { Apache Hadoop } Questions Click Here