Databricks Certified Associate Developer for Apache Spark — Question 221

Which of the following statements about Spark DataFrames is incorrect?

Answer options

• A. Spark DataFrames are the same as a data frame in Python or R.
• B. Spark DataFrames are built on top of RDDs.
• C. Spark DataFrames are immutable.
• D. Spark DataFrames are distributed.
• E. Spark DataFrames have common Structured APIs.

Correct answer: A

Explanation

The correct answer is A because Spark DataFrames, while similar in concept to data frames in Python or R, have distinct features and optimizations specific to Spark. The other statements are true: Spark DataFrames are built on RDDs, are immutable, are distributed across clusters, and provide common Structured APIs.