# Certified-Associate-Developer-for-Apache-Spark — Question 425

**Type:** multiple_choice
**Topics:** topic_1

## Question

Which of the following DataFrame operations is classified as a wide transformation?

## Correct Answer

_See scenario._

## Explanation

Selected Answer: B
B. DataFrame.join() is classified as a wide transformation, as it shuffles the data across the network to perform the join operation.

**Reference:** examtopics_top_comment

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Source: https://hiexam.net/q/databricks/Certified-Associate-Developer-for-Apache-Spark/425  
Practice (tracked): https://hiexam.net/study/Certified-Associate-Developer-for-Apache-Spark/practice