Certified Associate Developer for Apache Spark Exam

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Question 165

Which of the following describes executors?

Executors are the communication pathways from the driver node to the worker nodes.

Executors are the most granular level of execution in the Spark execution hierarchy.

Executors always have a one-to-one relationship with worker nodes.

Executors are synonymous with worker nodes.

Executors are processing engine instances for performing data computations which run on a worker node.

Correct Answer: E

Executors are processing engine instances for performing data computations which run on a worker node. They are responsible for executing tasks given to them by the driver program and returning the results.

Discussion

Sowwy1Option: E

E. Executors are processing engine instances for performing data computations which run on a worker node.