Big Data Interview Questions
Questions Answers Views Company eMail

What is the future of Big Data trend?

46

Where does Big Data come from?

36

What are Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift?

62




How big data analysis helps businesses increase their revenue?

99

What are the sources generating big data?

48

What do the four V's of Big Data denote?

43

What is Big Data?

43

Why do we need a new framework for handling big data?

64

What is the difference between big data and cloud computing?

70

What is MapReduce?

357

What MapReduce framework consists of?

352

Can we submit the mapreduce job from slave node?

397

How can we control particular key should go in a specific reducer?

228

How can you add the arbitrary key-value pairs in your mapper?

339

What is Reduce only jobs?

197







Un-Answered Questions { Big Data }

Can we change the body of the flume event?

5


How would you diagnose or do exception handling in the pig?

115


What is a block and block scanner in HDFS?

251


What is dynamic partitioning and when is it used?

97


What is crontab? Explain with suitable example?

225






How do you define "block" in HDFS?

171


How businesses could be benefitted with Big Data?

42


What is the heartbeat used for?

171


What are the file formats that Hive supports and can use be used for storage?

92


How did you debug your Hadoop code ?

530


How big data analysis helps businesses increase their revenue?

99


How many Daemon processes run on a Hadoop system?

391


Is map like a pointer?

206


What is IdentityMapper?

178


What is the default replication factor?

208