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

Big Data Interview Questions

Questions Answers Views Company eMail

I have a row or key cache hit rate of 0.XX123456789 reported by JMX. Is that XX% or 0.XX% ?

When to avoid secondary indexes?

What ports does Cassandra use?

When should you not use Cassandra? OR When to use RDBMS instead of Cassandra?

128

What are secondary indexes?

What is the design architecture of Cassandra?

Who uses Cassandra?

JMX stands for?

108

What are the different features of Cassandra?

What happens to existing data in my cluster when I add new nodes?

228

What is the primary objective of NoSQL databases?

What is Cassandra Query Language?

What are the different components of Cassandra?

107

What are “Seed Nodes” in Cassandra?

300

What do you understand by High availability?

Un-Answered Questions { Big Data }

What are main APIs of Kafka?

637

Which the fundamental data structure of Spark

306

Explain Catalyst framework?

361

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

502

Explain process to access sub directories recursively in hive queries.

896

Define a sequence file in hadoop?

538

Explain pigdump function?

608

How to load data in pig?

607

When does the queue full exception emerge inside the manufacturer?

501

what is WebDAV in Hadoop?

729

What do you understand by the term Straggler ?

684

What does rdd stand for in logistics?

315

Define MapReduce?

687

Can sqoop use spark?

Can I set the number of reducers to zero?

397

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