Big Data Interview Questions
Questions Answers Views Company eMail

What is the future of Big Data trend?

45

Where does Big Data come from?

35

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

62




How big data analysis helps businesses increase their revenue?

96

What are the sources generating big data?

45

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

42

What is Big Data?

41

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

63

What is the difference between big data and cloud computing?

69

What is MapReduce?

340

What MapReduce framework consists of?

332

Can we submit the mapreduce job from slave node?

379

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

205

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

316

What is Reduce only jobs?

177







Un-Answered Questions { Big Data }

In Map Reduce why map write output to Local Disk instead of HDFS?

221


Does Apache Flume provide support for third party plug-ins?

5


What's the best way to copy files between HDFS clusters?

180


What is HDFS High Availability?

222


What is a Task instance in Hadoop? Where does it run?1

148






What is HDFS block size and what did you chose in your project?

149


What are different types of filesystem?

294


How to write a Custom Key Class?

140


Does Hadoop requires RAID?

176


What are the limitations of Hive?

238


Can Hadoop be compared to NOSQL database like Cassandra?

145


how can we change Replication Factor?

139


Differentiate between Pig Latin and Pig Engine?

114


What is the fundamental difference between a MapReduce Split and a HDFS block?scale data processing?

71


how is a file of the size 1 GB uncompressed

145