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Big Data Interview Questions
Questions Answers Views Company eMail

What is difference between hive and hdfs?

 385

What is skew data in hive?

 430

Is kafka an etl tool?

 259

What language is apache kafka written in?

 282

What is zookeeper server?

 1

What is the difference between map and reduce?

 348

What is optimal size of a file for distributed cache?

 374

What can skew the mean?

 187

What is vectorized query execution?

 216

What is map side join?

 187

What does dag stand for?

 199

What is data ingestion pipeline?

 185

What is the difference between reducebykey and groupbykey?

 201

What is data skew and how do you fix it?

 212

Is databricks a database?

 212

Un-Answered Questions { Big Data }

List various commonly used machine learning algorithm?

192

Can I do insert … select * into a partitioned table?

34

Why is Kafka technology significant to use?

308

How hbase handles the write failure?

164

What is the default level of parallelism in apache spark?

235




Differentiate between static and dynamic cql tables.

47

What is a udf?

224

What Mapper does?

666

Explain hbasestorage function?

311

What is rdd map?

205

Is it necessary to learn hadoop for spark?

185

What is the key- value pair in MapReduce?

384

What is dataframe api?

202

Is apache spark in demand?

181

What is use of tools command?

121

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