Big Data Interview Questions
Questions Answers Views Company eMail

What are the relational operators available related to combining and splitting in pig language?

62

Highlight the key differences between MapReduce and Apache Pig?

52

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

76




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

58

Mention the common features in Pig and Hive?

99

What are the debugging tools used for Apache Pig scripts?

73

Differentiate between Hadoop MapReduce and Pig?

57

What is a UDF in Pig?

62

Differentiate between GROUP and COGROUP operators?

53

What is BloomMapFile?

63

Highlight the difference between group and Cogroup operators in Pig?

62

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

97

What are the relation operations in Pig? Explain any two with examples?

108

Differentiate between Pig Latin and Pig Engine?

114

What is the function of co-group in Pig?

132







Un-Answered Questions { Big Data }

Why are the number of splits equal to the number of maps?

159


How the HDFS Blocks are replicated?

160


What is the process to change the files at arbitrary locations in HDFS?

517


What is the default replication factor?

183


Should we use RAID in Hadoop or not?

204






What is a block and block scanner in HDFS?

227


What are the debugging tools used for Apache Pig scripts?

73


mapper or reducer?

153


Is Hive supports Temporary Tables?

78


What are the use cases of Apache Pig?

116


How did you debug your Hadoop code ?

510


What problem does Apache Pig solve?

150


What is lineage graph?

87


What ate the key components of Hive Architecture?

76


What is the meaning of speculative execution in Hadoop? Why is it important?

231