Databricks Certified Associate Developer for Apache Spark — Question 223

Which of the following statements about slots is incorrect?

Answer options

• A. Slots are the most granular level of execution in the Spark execution hierarchy.
• B. Slots are resources for parallelization within an executor.
• C. Tasks are assigned to slots for computation.
• D. There can be more slots than tasks.
• E. There must be at least as many slots as there are executors.

Correct answer: E

Explanation

The correct answer is E because it is not necessary to have at least as many slots as executors; there can be fewer slots than executors. Options A, B, C, and D accurately describe the role and function of slots within the Spark execution hierarchy.