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Big Data Interview Questions
Questions Answers Views Company eMail

Explain deletion in hbase? Mention what are the three types of tombstone markers in hbase?

75

What are the main key structures of hbase?

87

What is the use of hbase hmaster?

78

Which technique can you use in hbase to access hfile directly without the help of hbase?

97

Explain what is wal and hlog in hbase?

162

How many operational commands in hbase?

95

why use hcolumndescriptor class?

76

What is the row key?

71

Tell me about the types of hbase operations?

83

How does hbase actually delete a row?

106

Name the filter which accepts the page size as the parameter in hbase?

102

Explain why to use hbase?

84

Mention the difference between hbase and relational database?

74

Mention what are the three types of tombstone markers in hbase?

109

Mention what are the key components of hbase?

89


Un-Answered Questions { Big Data }

What are the limitations of importing RDBMS tables into Hcatalog directly?

580


Is spark good for machine learning?

152


What is spark driver application?

123


What are hive operators and its types?

323


What is the use of having Filters in Apache Pig ?

334






What the information segments utilized by hadoop are?

146


What do you mean by data center in Cassandra?

46


What is an input reader in reference to mapreduce?

255


Can you execute Hadoop dfs Commands from Hive CLI? How?

714


Explain Accumulator in Spark?

163


Name the two types of shared variable available in Apache Spark?

160


Explain InputSplit in Hadoop?

149


What is the problem in having lots of small files in hdfs?

7


Does google use spark?

131


Explain the architecture of Hadoop Pig?

277