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?

273

What does spark do during speculative execution?

309

What is heap memory in spark?

247

What is external shuffle service in spark?

283

What is spark client?

269

Which are the various data sources available in spark sql?

282

Can you run spark without hadoop?

310

What is tungsten engine in spark?

309

What is stage and task in spark?

208

What is spark execution engine?

345

Is spark sql a database?

248

Is spark distributed computing?

282

What is row rdd in spark?

283

How is rdd fault?

268

How does reducebykey work in spark?

247

Un-Answered Questions { Big Data }

How does apache spark engine work?

291

Explain Spark map() transformation?

326

Explain how message is consumed by consumer in Kafka?

482

How will you convert the string ’51.2’ to a float value in the price column?

845

What are the port numbers of namenode, job tracker and task tracker?

672

What are the core components of Apache Hadoop?

730

What are different modes of metastore deployment in Hive?

668

What is the main difference between kafka and fume?

551

What is master node in spark?

286

What is the use of combiners in the hadoop framework?

586

How HDFS helps NameNode in scaling in Hadoop?

Why we use parallelize in spark?

272

What are the core api’s of kafka?

473

How can we launch Spark application on YARN?

409

How does A/B testing work?

594

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