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 are the different components that are available in kafka?

553

How to start zookeeper server?

What is the role of the zookeeper?

Difference between cassandra and mongodb?

What we need to be taken care while adding a column?

102

What is the advantage of cassandra?

When should you use cassandra?

106

Elaborate on cassandra - cql?

What is the use of “resultset execute” method?

Cassandra is written in which language?

110

What do you understand by cluster in cassandra?

What do you understand by node in cassandra?

What do you mean by “data centre” in cassandra?

How many types of nosql databases?

Define lzo?

203

Un-Answered Questions { Big Data }

What must we know to work on Zookeeper well?

Why does my select statement fail?

Explain why to use hbase?

166

Establish the difference between a node, cluster & data centres in Cassandra.

166

What are the parameters of mappers and reducers?

539

What is scala spark?

314

What is mlib in apache spark?

319

State some applications of HBase?

173

What is the maximum size of string data type supported by Hive?

829

What is compaction in hbase?

175

How many InputSplits will be made by hadoop framework?

539

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

809

What do you know about collaborative filtering?

653

Explain how RDDs work with Scala in Spark

354

Can the region server will be located on all datanodes?

324

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