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 difference between DSM and RDD?

304

What do you mean by Persistence?

316

How to create a Sparse vector from a dense vector?

355

What are common uses of Apache Spark?

295

In a very huge text file, you want to just check if a particular keyword exists. How would you do this using Spark?

402

How is fault tolerance achieved in Apache Spark?

305

What are the benefits of lazy evaluation?

303

How does Apache Spark handles accumulated Metadata?

348

What is lazy evaluation in Spark?

317

What is the use of checkpoints in spark?

319

How can Spark be connected to Apache Mesos?

327

In how many ways RDDs can be created? Explain.

299

What are the advantages of DataSets?

289

What makes Apache Spark good at low-latency workloads like graph processing and machine learning?

328

Can you use Spark to access and analyse data stored in Cassandra databases?

370

Un-Answered Questions { Big Data }

What do you mean by a bag in Pig?

987

What will be the output of cast ('XYZ' as INT)?

687

Give any two features of flume?

102

Explain pigdump function?

608

How do I start a spark cluster?

298

Explain SHOW and DESCRIBE Commands in Hive?

746

What do you mean by data locality?

671

What is the default extension of the files produced from a sqoop import using the –compress parameter?

Can spark work without hadoop?

331

What are the actions in spark?

273

What are the core methods of a Reducer?

511

Name a few import control commands. How can Sqoop handle large objects?

What is the role of Spark Driver in spark applications?

319

How to start kafka server?

579

What is difference between a MapReduce InputSplit and HDFS block

673

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