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

Big Data Interview Questions

Questions Answers Views Company eMail

Give some important features of SPM?

What is prepare() method in Cassandra?

What is Cassandra?

What are the differences between a node, a cluster, and datacenter in Cassandra?

Describe SPM?

What are the different CQL data definition commands in Cassandra?

Describe DataStaxOpsCenter?

172

How Cassandra stores data?

What is the usage of "void close()" method?

What are the Advantages of using Cassandra ?

Define Cluster?

107

How does Cassandra delete data?

How many types of NoSQL databases? Give some examples.

187

Define replication factor?

What is session in Cassandra?

157

Un-Answered Questions { Big Data }

What are broadcast variables in spark?

325

What is big data lake?

479

Detail description of the Reducer phases?

852

Define Actions.

303

How many daemon processes run on a hadoop cluster?

457

What is oozie in hadoop?

672

Does Hadoop requires RAID?

945

What is the difference between NAS and HDFS?

Can multiple clients write into an HDFS file concurrently in hadoop?

What do you understand by the term Straggler ?

686

Explain the steps to be followed to deploy a big data solution?

502

What is the importance of dfs.namenode.name.dir in HDFS?

How spark is faster than hadoop?

267

Tell something about the query language used in Cassandra Database?

What are the consistency levels for read operations in Cassandra?

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