Practice Reducer Function Signature (1.2.2) - Cloud Applications: MapReduce, Spark, and Apache Kafka
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Reducer Function Signature

Practice - Reducer Function Signature

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Question 1

What benefit does a 'functional' characteristic of a reducer function provide in a distributed environment?
* Type: text
* Correct Answer: It ensures predictability, makes the function easier to reason about, and enables parallel execution without errors caused by data side effects.
* Explanation: Purely functional components are easier to distribute and run concurrently because their output depends solely on their inputs.
* Hint: Think about the advantages of not having external dependencies or impacts.

💡 Hint: Think about the advantages of not having external dependencies or impacts.

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