What is an RDD in Spark?
- A A Resilient Distributed Dataset: an immutable partitioned collection that can be rebuilt from its lineage
- B A relational database driver
- C A real-time data dispatcher
- D A replication daemon
Answer
A Resilient Distributed Dataset: an immutable partitioned collection that can be rebuilt from its lineage
Lineage means a lost partition is recomputed from its parent rather than requiring replication of the data itself.





