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 difference between hive and hdfs?

591

What is skew data in hive?

654

Is kafka an etl tool?

426

What language is apache kafka written in?

499

What is zookeeper server?

What is the difference between map and reduce?

572

What is optimal size of a file for distributed cache?

588

What can skew the mean?

258

What is vectorized query execution?

292

What is map side join?

285

What does dag stand for?

276

What is data ingestion pipeline?

302

What is the difference between reducebykey and groupbykey?

272

What is data skew and how do you fix it?

311

Is databricks a database?

295

Un-Answered Questions { Big Data }

How can we create children / sub-znode?

What is the functionality of jobtracker in hadoop?

664

While starting hadoop services, datanode service is not running?

405

How do we represent data in Spark?

335

List the popular use cases of Apache Spark?

273

What is Sqoop Import Mainframe Tool and its Purpose?

Name the examples of some companies that are using hadoop structure?

635

What are the key differences between Pig vs MapReduce?

557

What is the use of flatmap in spark?

262

What are some of the interesting facts about Big Data?

569

How Cassandra stores data?

How is Pig Useful For?

598

What is write ahead log(journaling) in Spark?

412

Explain what are the tools used in Big Data?

118

What is pipelined rdd?

241

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