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?

495

What is Identity reducer?

522

What is Chain Mapper?

558

What are the core methods of a Reducer?

511

What are the parameters of mappers and reducers?

489

What is the difference between TextinputFormat and KeyValueTextInputFormat class?

508

How is the splitting of file invoked in Hadoop ?

535

How many InputSplits will be made by hadoop framework?

492

Explain the usage of Context Object?

476

Define Cassandra?

What are the parameters used to create a keyspace?

112

Describe Network Topology Strategy?

132

Give the difference between Drop and Truncate in CQLSH?

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

Define Simple Strategy?

128

Un-Answered Questions { Big Data }

when do reducers play their role in a mapreduce task?

616

Is spark difficult to learn?

304

Can we have multiple entries in the master files?

694

How can you schedule a sqoop job using Oozie?

Define Partition in Apache Spark?

312

What is apache spark in big data?

272

Where is Mapper output stored?

854

What are basic steps to be performed while working with big data?

561

What do you understand by Kundera?

What are the different methods to run Spark over Apache Hadoop?

718

What is hinted handoff?

How does Mappers run method works?

893

What does rdd stand for in logistics?

315

Can ambari manage multiple clusters and why?

How to optimize Hadoop MapReduce Job?

632

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