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 are the benefits of Spark over MapReduce?

641

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

630

Why do we need MapReduce during Pig programming?

642

What is difference between a MapReduce InputSplit and HDFS block

674

What is lineage graph in Apache Spark?

351

Different Running Modes of Apache Spark

310

How will you calculate the number of executors required to do real-time processing using Apache Spark? What factors need to be considered for deciding on the number of nodes for real-time processing?

289

List the popular use cases of Apache Spark?

289

What is Spark.executor.memory in a Spark Application?

305

Compare Hadoop and Spark?

322

What is write ahead log(journaling) in Spark?

427

What are Actions?

318

What are the limitations of Spark?

293

What is a reliable and unreliable receiver in Spark?

322

In a given spark program, how will you identify whether a given operation is Transformation or Action ?

341

Un-Answered Questions { Big Data }

Apache Flume support third-party plugins also?

How is spark different from hadoop?

297

Clarify about the smb join in hive?

657

What is the importance of eval tool?

Which modes can Hadoop be run in? List a few features for each mode?

469

How can you use producer api code?

522

How is the distance between two nodes defined in Hadoop?

1455

What is metadata storage service in bookkeeper?

Explain the usage of Context Object?

476

what is Speculative Execution?

831

What is data replication in Cassandra?

What does adminclient api in kafka?

523

mapper or reducer?

994

Define Actions.

303

What is mapreduce algorithm?

587

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