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 the FlatMap Transformation in Apache Spark RDD?

271

can you run Apache Spark On Apache Mesos?

296

Describe Partition and Partitioner in Apache Spark?

280

Describe Accumulator in detail in Apache Spark?

299

List down the languages supported by Apache Spark?

274

Discuss the various running mode of Apache Spark?

279

Describe Spark SQL?

318

Explain SparkContext in Apache Spark?

306

What are the types of Transformation in Spark RDD Operations?

266

Explain first() operation in Apache Spark RDD?

350

What are the ways in which Apache Spark handles accumulated Metadata?

341

Explain the various Transformation on Apache Spark RDD like distinct(), union(), intersection(), and subtract()?

269

Is it possible to run Apache Spark without Hadoop?

262

What is Apache Spark Streaming?

309

How can you implement machine learning in Spark?

255

Un-Answered Questions { Big Data }

Is there any benefit of learning mapreduce if spark is better than mapreduce?

1787

What are the additional benefits YARN brings in to Hadoop?

888

How can you trigger automatic clean-ups in Spark to handle accumulated metadata?

423

What is MapFile?

924

Where is the Mapper Output intermediate kay-value data stored ?

1303

What is the difference between a node, a cluster, and data centre?

245

Give me examples of unstructured data?

445

Use of export command in hadoop sqoop?

How do I clear my spark cache?

255

What is shuffle spill in spark?

263

What are the various levels of persistence in Apache Spark?

300

What is the functionality of jobtracker in hadoop? How many instances of a jobtracker run on hadoop cluster?

716

Explain how cassandra writes data?

What port does spark use?

301

What happens if rdd partition is lost due to worker node failure?

436

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