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

Big Data Interview Questions

Questions Answers Views Company eMail

How can we create children / sub-znode?

How can we remove a znode?

Explain the zookeeper workflow?

What are the basics of zookeeper api?

What is mandatory while creating a table in cassandra?

Explain what is cassandra?

List out the other components of cassandra?

What is the use of cassandra and why to use cassandra?

153

Explain what is a column family in cassandra?

124

what is a cluster in cassandra?

what are the main components of cassandra data model?

what is composite type in cassandra?

what are the values stored in the cassandra column?

When to use secondary indexes?

What are the benefits of NoSQL over relational database?

223

Un-Answered Questions { Big Data }

How do you stop a spark?

281

Why is Reading done in parallel and writing is not in HDFS?

What is the use of get() method?

153

Why Apache Spark?

317

What is the command to change the replication factor ?

501

What is an identity mapper and identity reducer?

603

What is Resilient Distributed Dataset (RDD) in Apache Spark? How does it make spark operator rich?

281

What are the components of spark?

278

What are the different types of nosql databases?

Explain bloom?

614

What is an "RDD Lineage"?

297

Specify Cassandra’s importance on Facebook?

153

Explain what is sqoop in Hadoop ?

725

What are the benefits of Spark lazy evaluation?

320

Give the use of the bootstrap panel.

676

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