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?

714

Explain what is sqoop in Hadoop ?

781

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

789

Explain what is the purpose of RecordReader in Hadoop?

796

How to restart Namenode?

806

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

809

Mention what are the data components used by Hadoop?

701

What does /etc /init.d do?

742

What is a Combiner?

802

Main Components of Hadoop?

826

What are the four characteristics of Big Data?

771

Mention what is the number of default partitioner in Hadoop?

754

Explain what happens in textinformat ?

787

Explain the rudimentary difference between Cassandra and HBase?

Is HDFS utilized in Cassandra? If yes, where?

Un-Answered Questions { Big Data }

What is rack awareness in hadoop?

533

What are the different composite keys in Cassandra?

How do you overwrite replication factor?

503

What is the command to start and stop the Spark in an interactive shell?

329

What are partitions and tokens in cassandra?

What are the limitations of Hadoop?

630

Characterize data integrity? How does hdfs ensure information integrity of data blocks squares kept in hdfs?

What is a Task instance in Hadoop? Where does it run?1

892

What exactly is spark?

287

What is Interceptor?

111

Say what the object inspector functionality is in hive?

810

How do users interact with HDFS in Apache Pig ?

804

How is the distance between two nodes defined in Hadoop?

1506

what is Speculative Execution?

906

Can you define serde in hive?

741

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