Big Data Interview Questions
Questions Answers Views Company eMail

What are the different pig data types?

54

Explain about the different complex data types in Pig?

49

What is a relation in Pig?

63




Explain the difference between COUNT_STAR and COUNT functions in Apache Pig?

119

How should 'store' keyword is useful in pig scripts?

82

What is the use of having Filters in Apache Pig ?

57

How to write 'foreach' statement for map datatype in pig scripts?

49

What are the basic steps to writing a UDF Function in Pig?

54

What are the various diagnostic operators available in Apache Pig?

72

What is a bag in Pig Latin?

103

What are the different Relational Operators available in pig language?

68

What are the different ways of executing Pig script?

54

Explain the LOAD keyword in Pig script?

47

What is a MapFile?

61

Name the scalar data type and complex data types in Pig?

52







Un-Answered Questions { Big Data }

Can Apache Kafka be used without Zookeeper?

185


Does Pig support multi-line commands?

138


Define Spark Streaming.

40


How big data analysis helps businesses increase their revenue?

96


What is difference between regular file system and HDFS?

210






Name some of the important tools useful for Big Data analytics?

43


what factors the block size takes before creation?

128


What is your favourite tool in the hadoop ecosystem?

180


State the usage of 'filters', 'group' , 'orderBy', 'distinct' keywords in pig scripts?

58


Can there be no Reducer?

144


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

46


What is Hive Data Definition language?

74


How Mapper is instantiated in a running job?

236


How many JVMs run on a slave node?

175


Where is Mapper output stored?

46