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 different transformation on DStream?

284

What are Paired RDD?

315

Name some sources from where Spark streaming component can process real-time data?

291

What is meant by in-memory processing in Spark?

304

Explain what are the various types of Transformation on DStream?

282

Define Partition in Apache Spark?

313

How many types of Transformation are there?

314

How you can remove the element with a critical present in any other Rdd is Apache spark?

300

What is Sparse Vector?

339

Is it possible to run Spark and Mesos along with Hadoop?

275

What is DataFrames?

368

Discuss writeahead logging in Apache Spark Streaming?

325

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

295

What do you mean by Speculative execution in Apache Spark?

299

Explain about the different cluster managers in Apache Spark

328

Un-Answered Questions { Big Data }

How do I start a spark master?

287

What do sorting and shuffling do?

696

What can be optimum value for Reducer?

947

What can skew the mean?

282

List the various options available with the Hive command?

903

How data or file is written into Hadoop HDFS?

Explain totuple function?

601

mapper or reducer?

996

what is the meaning of broker in Kafka?

543

How will you design or modify schema in hbase programmatically?

157

How to copy file from HDFS to local?

Explain the action count() in Spark RDD?

281

Map reduce jobs take too long. What can be done to improve the performance of the cluster?

696

What is Hadoop serialization?

697

What is CTAS Table in Hive?

738

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