Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

What is commodity hardware?

1 717

Explain what is sqoop in Hadoop ?

1 784

Explain how do ‘map’ and ‘reduce’ works?

1 793

Explain what is the purpose of RecordReader in Hadoop?

1 797

How to restart Namenode?

1 811

Suppose Hadoop spawned 100 tasks for a job and one of the task failed. What will Hadoop do?

1 812

Mention what are the data components used by Hadoop?

1 705

What does /etc /init.d do?

1 747

What is a Combiner?

1 804

Main Components of Hadoop?

1 829

What are the four characteristics of Big Data?

1 773

Mention what is the number of default partitioner in Hadoop?

1 758

Explain what happens in textinformat ?

1 792

Explain the rudimentary difference between Cassandra and HBase?

1 98

Is HDFS utilized in Cassandra? If yes, where?

1 97

Un-Answered Questions { Big Data }

How you can contact your client everyday ?

1013

did you maintain the hadoop cluster in-house or used hadoop in the cloud?

1059

List the advantage of Parquet file in Apache Spark?

474

How can I delete the above index named index_bonuspay?

777

Where does the data of a Hive table gets stored?

718

Which modes can Hadoop be run in? List a few features for each mode?

517

How can you set an arbitrary number of Reducers to be created for a job in Hadoop?

518

What is meant by Transformation? Give some examples.

328

Give me the examples of Columnar database ?

641

What is the roadmap for apache driver version one.0?

Can free-form SQL queries be used with Sqoop import command? If yes, then how can they be used?

What is the latest version of spark?

288

Can We Change settings within Hive Session? If Yes, How?

836

Explain how RDDs work with Scala in Spark

355

What is the latest version of sqoop?

For More Un-Answered { Big Data } Questions Click Here