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

Big Data Interview Questions

Questions Answers Views Company eMail

Can you explain data versioning?

172

How will you design or modify schema in hbase programmatically?

157

What happens when you issue a delete command in hbase?

166

What is a bloom filter and how does it help in searching rows?

175

Hbase blocksize is configured on which level?

166

When would you use hbase?

178

What are the filters are available in apache hbase?

155

How do we back up a hbase cluster?

138

What are the data manipulation commands of hbase?

199

Explain data versioning?

178

While reading data from hbase, from which three places data will be reconciled before returning the value?

198

Which command is used to show the current hbase user?

192

How does bloom filter help in searching rows?

219

Explain the data model of hbase.

165

How hbase handles the write failure?

208

Un-Answered Questions { Big Data }

What do you mean by shuffling and sorting in MapReduce?

699

Is it possible to provide multiple inputs to hadoop? If yes, explain.

657

Hdfs stores data using commodity hardware which has higher chances of failures. So, how hdfs ensures the fault tolerance capability of the system?

Explain the flatMap operation on Apache Spark RDD?

318

How can you set an arbitrary number of mappers to be created for a job in Hadoop?

461

What are the advantages of DataSets?

291

Do we need to install spark in all nodes?

276

Can there be no Reducer?

840

Define fold() operation in Apache Spark?

305

What are the debugging tools used for Apache Pig scripts?

782

Any two Limitations of Flume?

Explain various Apache Spark ecosystem components. In which scenarios can we use these components?

381

What are different Hive commands available for hive and beeline CLI?

725

How analysis of Big Data is useful for organizations?

460

What are the main components of a Hadoop Application?

1039

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