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

Big Data Interview Questions

Questions Answers Views Company eMail

Elaborate on Identifiers?

121

What are keywords?

Explain the fundamental difference between Cassandra and Hadoop?

224

There seem to be certain management tools in Cassandra. What are they?

122

Specify Cassandra’s importance on Facebook?

153

Tunable consistency is supported by Cassandra. Explain.

Are Cassandra, Hadoop, Hbase and Cassandra are the same in nature? Specify.

Explain the term Cluster?

105

Explain what is logging in Cassandra?

What is HDFS?

Why HDFS?

How to Delete file from HDFS?

How to keep files in HDFS?

How is NFS different from HDFS?

Why is block size large in Hadoop?

Un-Answered Questions { Big Data }

What are the ways to launch Apache Spark over YARN?

281

Explain Alter Table Statement in HCatalog?

Define big data?

563

What is the use of apache mahout?

What is Flatten?

554

How to resolve IOException: Cannot create directory

1016

What is spark tool in big data?

282

What is a Speculative Execution in Hadoop MapReduce?

653

What is Slot in Hadoop v1? Why was it removed from Hadoop v2?

515

What is the use of truncate command?

188

Explain how can you debug hadoop code?

466

Why do we use ‘filters’ Pig scripts?

613

Is there any difference between FileSink and FileRollSink?

How NameNode tackle Datanode failures in Hadoop?

463

Does Cassandra support ACID transactions?

105

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