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?

190

What does spark do during speculative execution?

201

What is heap memory in spark?

179

What is external shuffle service in spark?

204

What is spark client?

189

Which are the various data sources available in spark sql?

194

Can you run spark without hadoop?

212

What is tungsten engine in spark?

216

What is stage and task in spark?

147

What is spark execution engine?

200

Is spark sql a database?

177

Is spark distributed computing?

208

What is row rdd in spark?

199

How is rdd fault?

200

How does reducebykey work in spark?

177

Un-Answered Questions { Big Data }

How to enable recycle bin in hadoop?

447

Explain the process of spilling in MapReduce?

341

Explain textloader function?

372

What are the steps to be followed to deploy a big data solution?

243

Explain what are the basic parameters of a mapper?

459

When running Spark applications, is it necessary to install Spark on all the nodes of YARN cluster?

239

Explain data flow in Flume?

What is bookkeeper?

What is kafka message?

290

How can the columns of a table in hive be written to a file?

421

Comparison between Secondary NameNode and Checkpoint Node in Hadoop?

272

What is the precedence order of hive configuration?

637

What is a disadvantage of using –direct parameter for faster data load by sqoop?

Explain how cassandra delete data?

Differentiate between GROUP and COGROUP operators?

382

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