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 many ways we can create rdd?

255

What does repartition do in spark?

316

What is the driver program in spark?

279

What is spark submit?

267

How do I clear my spark cache?

255

What is a partition in spark?

344

What is spark vectorization?

301

What is off heap memory in spark?

286

What is a tuple in spark?

268

Is spark an etl?

273

How is rdd distributed?

301

What are the common transformations in apache spark?

263

What is the difference between dataset and dataframe in spark?

344

What is distributed cache in spark?

327

What is catalyst framework in spark?

296

Un-Answered Questions { Big Data }

Name the language supported by apache spark for developing big data applications?

518

What does rdd mean?

290

why should we use 'group' keyword in pig scripts?

519

Does google use spark?

262

how can you debug Hadoop code?

784

What happens if the preferred replica is not in the isr?

534

What should be the HDFS Block size to get maximum performance from Hadoop cluster?

State the usage of 'filters', 'group' , 'orderBy', 'distinct' keywords in pig scripts?

612

How is spark sql different from hql and sql?

242

Explain what does hbase consists of?

153

What is the Cassandra Coefficient ?

Mention how hadoop is different from other data processing tools?

374

Is it possible to add or delete column families in a working group?

Difference between Sqoop and Cassandra?

Why is spark good?

264

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