Big Data Interview Questions
Questions Answers Views Company eMail

What is Hadoop Map Reduce ?

79

what does the text input format do?

70

What happens when a datanode fails ?

71




In Hadoop, which file controls reporting in Hadoop?

71

how can you debug Hadoop code?

77

For a job in Hadoop, is it possible to change the number of mappers to be created?

75

What are the primary phases of a Reducer?

59

how indexing in HDFS is done?

69

What is the role of a MapReduce partitioner?

72

Is it important for Hadoop MapReduce jobs to be written in Java?

64

what job does the conf class do?

65







Un-Answered Questions { Big Data }

What is Big Data Analytics?

62


What is the heartbeat used for?

171


What is the core of the job in MapReduce framework?

178


what are the basic parameters of a Mapper?

57


Explain about the core components of Flume?

5






What is Hive query processor?

91


How to Administering Hadoop?

193


What are the different operational commands in HBase at record level and table level?

134


Explain the shuffle?

162


How is the option in Hadoop to skip the bad records?

234


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

228


What is a UDF in Pig?

85


What is the default replication factor?

208


What happens when a datanode fails ?

71


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

170