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What is an RDD in Spark?

  1. A A Resilient Distributed Dataset: an immutable partitioned collection that can be rebuilt from its lineage
  2. B A relational database driver
  3. C A real-time data dispatcher
  4. 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.

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