Intermediate
Big Data & Data Engineering
Q42 / 100
In Spark, what is the difference between a "transformation" and an "action"?
Correct! Well done.
Incorrect.
The correct answer is A) Transformations build a lazy execution plan without computing results; actions trigger actual computation and return a result
A
Correct Answer
Transformations build a lazy execution plan without computing results; actions trigger actual computation and return a result
Explanation
Operations like map() or filter() are transformations that build a DAG lazily; operations like count() or collect() are actions that trigger execution.
Progress
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