This is a regular “data quiz”. Follow it on LinkedIn. Test your knowledge or learn something new.
Today Question:
A Spark DataFrame is processed?
A) In RAM
B) In a database
C) On disk
D) In a browser
Correct Answer: A
Explanation
A Spark DataFrame is a data abstraction in Apache Spark that processes data in memory for faster operations on large datasets. Spark distributes data across cluster nodes and executes transformations in parallel, reducing computation time compared to disk-based processing. The DataFrame API provides SQL-like operations, filtering, aggregations, and joins, while the Catalyst optimizer generates an efficient execution plan. In-memory execution enables iterative computations and machine learning at scale.