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

Big Data Interview Questions

Questions Answers Views Company eMail

Does spark sql use hive?

273

What is the default spark executor memory?

281

What is the difference between coalesce and repartition in spark?

317

What does rdd mean?

314

How does groupbykey work in spark?

299

What is tungsten in spark?

393

What is the difference between dataframe and dataset in spark?

284

What is an accumulator in spark?

298

What is apache spark used for?

304

What is the difference between spark and scala?

354

What is accumulators and broadcast variables in spark?

328

Does spark run hadoop?

299

What is coalesce in spark sql?

311

What are the features of spark rdd?

286

What is cluster mode in spark?

319

Un-Answered Questions { Big Data }

Do we need to give a password, even if the key is added in ssh?

727

What is the role of recordreader in hadoop mapreduce?

733

List out the other components of cassandra?

What do you mean by shuffling and sorting in MapReduce?

697

What is mllib?

279

Where is kafka used?

540

What are shared variables in spark?

304

why use hcolumndescriptor class?

153

What is the need of MapReduce in Hadoop?

629

What is vectorized query execution?

313

How should 'load' keyword is useful in pig scripts?

532

What are the other components of Cassandra?

Define replication factor?

What are the debugging tools used for Apache Pig scripts?

782

how Cassandra delete Data?

114

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