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

Big Data Interview Questions

Questions Answers Views Company eMail

Define Mem-table in Cassandra?

187

What are the management tools in Cassandra?

What is cqlsh?

What are the different composite keys in Cassandra?

Name different elements of JConsole?

What is difference between Column and Super Column?

Give the name of some components of Cassandra?

Explain the two types of compactions in Cassandra.

139

What is Cassandra Database Software ?

168

Explain Usage of Hive?

751

How can client interact with Hive?

754

How do you write your own SerDe?

805

What is the significance of ‘IF EXISTS” clause while dropping a table?

765

Can we run unix shell commands from the hive? Give example?

795

How Hive organize the data?

776

Un-Answered Questions { Big Data }

What are the key features of any nosql database?

What will be the result when you do cast(‘abc’ as int)?

813

Why is Data Block size set to 128 MB in Hadoop?

478

How does a namenode handle the failure of the data nodes?

741

What is identity mapper and identity reducer?

695

What is the use of spark in big data?

365

How is hadoop different from other data processing tools?

714

What kinds of impala queries or data are best suited for hbase?

What happens if the block in HDFS is corrupted?

what is NameNode in Hadoop?

948

What is the prerequisite for Apache Hive installation?

759

What is Ambari shell?

What are benefits of DataFrame in Spark?

345

How is hadoop different from spark?

284

How can you send some messages in kafka?

549

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