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Big Data Interview Questions
Questions Answers Views Company eMail

How many ways we can create rdd?

135

What does repartition do in spark?

131

What is the driver program in spark?

117

What is spark submit?

123

How do I clear my spark cache?

113

What is a partition in spark?

141

What is spark vectorization?

128

What is off heap memory in spark?

123

What is a tuple in spark?

121

Is spark an etl?

136

How is rdd distributed?

137

What are the common transformations in apache spark?

123

What is the difference between dataset and dataframe in spark?

151

What is distributed cache in spark?

137

What is catalyst framework in spark?

122


Un-Answered Questions { Big Data }

Are spark dataframes distributed?

135


What are clusters in cassandra?

32


Did you ever built a production process in hadoop ? If yes then what was the process when your hadoop job fails due to any reason?

273


What are the components of Apache Spark Ecosystem?

183


What are the fundamental configurations parameters specified in map reduce?

232






What happen when namenode enters in safemode in hadoop?

137


Explain distnct(),union(),intersection() and substract() transformation in Spark?

138


Explain how cassandra writes data?

33


Explain about transformations and actions in the context of RDDs.

139


What is session in Cassandra?

86


Mention what is the difference between hdfs and nas?

5


How many InputSplits is made by a Hadoop Framework?

242


What are the different compaction types in hbase?

75


Can we deploy job tracker other than name node?

188


Is it necessary to install spark on all the nodes of a YARN cluster while running Apache Spark on YARN ?

154