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

Big Data Interview Questions

Questions Answers Views Company eMail

How is dag created in spark?

289

What does spark do during speculative execution?

331

What is heap memory in spark?

265

What is external shuffle service in spark?

299

What is spark client?

277

Which are the various data sources available in spark sql?

297

Can you run spark without hadoop?

322

What is tungsten engine in spark?

318

What is stage and task in spark?

228

What is spark execution engine?

372

Is spark sql a database?

263

Is spark distributed computing?

298

What is row rdd in spark?

289

How is rdd fault?

286

How does reducebykey work in spark?

255

Un-Answered Questions { Big Data }

Why is output file name in Hadoop MapReduce part-r-00000?

629

What is bucketing ?

684

How NameNode tackle Datanode failures in Hadoop?

465

What are the four basic parameters of a reducer?

653

Can you explain spark streaming?

307

How to setup the local repository manually?

Do we need to place 2nd and 3rd data in rack 2 only?

443

What is a yaml file in cassandra?

What are the main components of a Hadoop Application?

1039

How ordering in hdfs is finished?

424

How does executor work in spark?

313

What does dag stand for?

295

What do you understand by Lazy Evaluation?

376

What is spark vectorization?

315

Explain Spark map() transformation?

354

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