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Un-Answered Questions { Apache Spark }
What is speculative execution in spark?
Explain write ahead log(journaling) in spark?
Explain values() operation in apache spark?
Define the level of parallelism and its need in spark streaming?
Define sparksession in apache spark? Why is it needed?
Describe different transformations in dstream in apache spark streaming?
What is shark?
Name a few commonly used spark ecosystems?
What is hive on spark?
Can we do real-time processing using spark sql?
How sparksql is different from hql and sql?
What is a parquet file?
Define the term ‘sparse vector.’
Define the roles of the file system in any framework?
What happens to rdd when one of the nodes on which it is distributed goes down?
