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

Apache Hadoop Interview Questions

Questions Answers Views Company eMail

Give the use of the bootstrap panel.

703

What are the functionalities of jobtracker?

707

Is it possible to provide multiple inputs to hadoop? If yes, explain.

698

What are the network requirements for using hadoop?

718

What is the relation between job and task in hadoop?

703

What do you know by storage and compute node?

722

What is the purpose of button groups?

799

Name the various types of lists supported by bootstrap.

719

How many instances of a jobtracker run on hadoop cluster?

680

How do you categorize a big data?

823

What is inputsplit in hadoop? Explain.

830

What platform and java version are required to run hadoop?

726

What is the functionality of jobtracker in hadoop?

763

What are the hadoop's three configuration files?

734

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

688

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Un-Answered Questions { Apache Hadoop }

What is a spill factor with respect to the ram?

908

Which are the three main hdfs-site.xml properties?

701

How Mapper is instantiated in a running job?

1029

What is Your Cluster size ?

1465

On what basis name node distribute blocks across the data nodes?

1098

What is the use of Combiner?

1010

What is a 'block' in HDFS?

1017

What is partioner in hadoop? Where does it run,mapper or reducer?

703

What is configuration of a typical slave node on Hadoop cluster? How many JVMs run on a slave node?

1068

What is the difference between Apache Hadoop and RDBMS?

841

How to change Replication Factor For below cases ?

1143

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

1356

What is the function of ApplicationMaster?

1005

Define a metadata?

691

What is the difference between Hadoop and Traditional RDBMS?

953

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