Apache Spark's core data structure, used for distributed data processing, is called what?
- RDD (Resilient Distributed Dataset)
- Dataframe
- HDFS (Hadoop Distributed File System)
- NoSQL
Apache Spark uses RDD (Resilient Distributed Dataset) as its core data structure for distributed data processing. RDDs are immutable, fault-tolerant collections of data that can be processed in parallel.
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