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 is difference between int and intwritable?

1519

What is Apache Hadoop YARN?

1499

What is a JobTracker in Hadoop? How many instances of JobTracker run on a Hadoop Cluster?

1151

What are channel selectors?

1088

What are the stable versions of Hadoop?

1062

Input Split & Record Reader and what they do?

1079

what is the default replication factor in HDFS?

1055

What is the core of the job in MapReduce framework?

909

How indexing is done in HDFS?

1147

How Pig differs from MapReduce?

847

Why are the number of splits equal to the number of maps?

1014

What are the Data types in Pig?

953

What are the two main components of ResourceManager?

1199

MapReduce Types and Formats and Setting up a Hadoop Cluster?

969

How will you make changes to the default configuration files?

1020

Un-Answered Questions { Big Data }

What are the different types of Ambari repositories?

How does big data help in increasing business revenue?

541

What are the various data sources available in SparkSQL?

351

Can spark work without hadoop?

355

Explain key features of Spark

325

What do you mean by metadata in HDFS?

What are the disservices of utilizing Apache Spark over Hadoop MapReduce?

679

Explain the lookup() operation in Spark?

245

Agent communicate with other Agents?

Explain different queries performed by apache tajo?

What is coarsegrainedexecutorbackend?

311

What is the default block size in hdfs?

1085

Apache Flume support third-party plugins also?

What is session in Cassandra?

164

What is replication factor?

492

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