Hadoop Interview Questions
Questions Answers Views Company eMail

What is the driver program in spark?

179

What is spark submit?

182

How do I clear my spark cache?

172

What is a partition in spark?

207

What is spark vectorization?

182

What is off heap memory in spark?

182

What is a tuple in spark?

191

Is spark an etl?

186

How is rdd distributed?

195

What are the common transformations in apache spark?

181

What is the difference between dataset and dataframe in spark?

219

What is distributed cache in spark?

197

What is catalyst framework in spark?

189

How is dag created in spark?

184

What does spark do during speculative execution?

197


Un-Answered Questions { Hadoop }

Explain HCatWriter?

5


How namenode handles data node failures?

296


Is it necessary to write jobs for hadoop in the java language?

403


What is a Consumer Group?

377


What is rdd in spark with example?

183






How is mapreduce related to cloud computing?

336


How would an hadoop administrator deploy various components of hadoop in production?

223


What is JMX?

141


List the languages supported by Apache Spark?

195


How do we represent data in Spark?

211


How is dag created in spark?

184


What are the stable versions of Hadoop?

694


What types of costs are associated with creating the index on hive tables?

649


What is Apache Spark?

195


What is apache ambari?

96