Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

What is LazyOutputFormat in Hadoop?

268

What is Identity reducer?

235

What is Chain Mapper?

295

What are the core methods of a Reducer?

255

What are the parameters of mappers and reducers?

227

What is the difference between TextinputFormat and KeyValueTextInputFormat class?

250

How is the splitting of file invoked in Hadoop ?

266

How many InputSplits will be made by hadoop framework?

260

Explain the usage of Context Object?

230

Define Cassandra?

What are the parameters used to create a keyspace?

Describe Network Topology Strategy?

103

Give the difference between Drop and Truncate in CQLSH?

How can a user get the information on the version of CQLSH?

Define Simple Strategy?

Un-Answered Questions { Big Data }

What is spark tool?

169

What is Apache Spark Machine learning library?

213

What are the downsides of Spark?

210

What is shuffleing in mapreduce?

359

What are the parameters used to create a keyspace?

Why Hive is not suitable for OLTP systems?

449

What are the problems with Hadoop 1.0?

768

Name some Complex types of Data types, Avro Supports?

What operations does rdd support?

187

Why is Kafka technology significant to use?

308

What are the core components of Apache Hadoop?

414

What is a rack awareness algorithm?

What is the function of mapreducer partitioner?

357

What is a databricks cluster?

281

What is a bag in pig?

359

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