Are spark dataframes distributed?
What are clusters in cassandra?
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?
What are the components of Apache Spark Ecosystem?
What are the fundamental configurations parameters specified in map reduce?
What happen when namenode enters in safemode in hadoop?
Explain distnct(),union(),intersection() and substract() transformation in Spark?
Explain how cassandra writes data?
Explain about transformations and actions in the context of RDDs.
What is session in Cassandra?
Mention what is the difference between hdfs and nas?
How many InputSplits is made by a Hadoop Framework?
What are the different compaction types in hbase?
Can we deploy job tracker other than name node?
Is it necessary to install spark on all the nodes of a YARN cluster while running Apache Spark on YARN ?