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?

1061

What is compute and Storage nodes?

1054

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

1008

How can you overwrite the replication factors in HDFS?

1278

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

1043

Knox and Hadoop Development Tools?

973

In which location Name Node stores its Metadata and why?

1423

Is a job split into maps?

1075

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

1093

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

981

What are the site-specific configuration files in Hadoop?

1132

On what basis data will be stored on a rack?

1175

How is HDFS fault tolerant?

1075

How to Administering Hadoop?

948

What are the main components of a Hadoop Application?

1079

Post New Apache Hadoop Questions

Un-Answered Questions { Apache Hadoop }

What is the default block size in hdfs?

1079

What is speculative execution in Hadoop?

1091

What is the function of NodeManager?

944

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

683

Explain how is hadoop different from other data processing tools?

765

What do slaves consist of?

708

what is SPF?

1554

Do we need to give a password, even if the key is added in ssh?

764

What happens to a namenode, when job tracker is down?

786

Define a datanode?

687

What will be the consideration while we do Hardware Planning for Master in Hadoop architecture?

1111

What is the problem with HDFS and streaming data like logs

1059

What is cloudera and why it is used?

833

What problems have you faced when you are working on Hadoop code?

1015

What is NoSQL?

960

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