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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain Spark Core?

300

Explain the flatMap operation on Apache Spark RDD?

318

Can we run Apache Spark without Hadoop?

306

What is DStream in Apache Spark Streaming?

319

Define Partition and Partitioner in Apache Spark?

303

Explain briefly what is Action in Apache Spark? How is final result generated using an action?

311

Describe the distnct(),union(),intersection() and substract() transformation in Apache Spark RDD?

303

Define Spark-SQL?

281

Explain the repartition() operation in Spark?

289

Compare Transformation and Action in Apache Spark?

284

How does pipe operation writes the result to standard output in Apache Spark?

365

Explain how you can get exactly once messaging from kafka during data production?

522

What is combiner aggregator?

592

When do you call the cleanup method?

526

What are the key benefits of using storm for real time processing?

543

Un-Answered Questions { Big Data }

Explain caching in spark streaming.

305

What is Block in HDFS?

What is illustrate used for in apache pig?

594

How can data transfer be minimized when working with Apache Spark?

295

What is the usage of "void close()" method?

How can you import only a subset of rows from a table?

What are the benefits of block transfer?

994

Is spark and hadoop same?

266

what happens when Hadoop spawned 50 tasks for a job and one of the task failed?

692

What is driver and executor in spark?

313

Describe Partition and Partitioner in Apache Spark?

303

What does apache mahout do?

What do you know about the case sensitivity of apache pig?

456

How do you deal with sparse data?

What is the difference between external table and managed table?

967

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