Apache Spark Certification Practice Test

Question: 1 / 400

What type of results do RDD actions return?

They return an RDD

They return values

RDD actions in Apache Spark are operations that trigger the execution of the Spark computation and return results to the driver program. These actions compute the results and send them back, which can be values that are derived from the data in the RDD.

For example, when you use actions such as `count`, `collect`, `first`, or `take`, the results are immediate and include concrete values like integers or arrays, depending on the action used. This characteristic distinguishes RDD actions from transformations, which do not return values immediately but instead produce a new RDD that represents the transformed data.

While some options like returning an RDD or DataFrames are related to transformations, actions are specifically designed to yield definitive outcomes, making option B the accurate representation of the results returned by RDD actions.

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They return DataFrames

They return objects

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