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?

229

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 is cluster manager in spark?

304

what is next step after mapper or maptask?

428

What are the most common OutputFormat in Hadoop?

549

How can you start the kafka server?

577

What causes breaker to spark?

300

Why spark is faster than hadoop?

248

What is the primary purpose of flume in the hadoop architecture?

875

Explain what does the conf.setMapper Class do in MapReduce?

652

What is the need of MapReduce in Hadoop?

629

Define a job tracker?

701

In Hadoop, which file controls reporting in Hadoop?

772

What are types of hive built-in functions?

742

How to create hadoop archive?

419

In the Producer, when does QueueFullException occur?

552

What is the NameNode port number?

400

For More Un-Answered { Big Data } Questions Click Here