[Solved] What is the main benefit of exactly-once stream processing in Kafka? — Ans: It ensures messages are processed only once, avoiding duplicates. | Kafka

Kafka - Advanced Stream Processing

What is the main benefit of exactly-once stream processing in Kafka?

AIt ensures messages are processed only once, avoiding duplicates.

BIt speeds up message delivery by skipping acknowledgments.

CIt allows messages to be processed multiple times for safety.

DIt disables message ordering to improve throughput.

Step-by-Step Solution

Solution:

Step 1: Understand exactly-once processing goal
Exactly-once processing means each message affects the system only once, preventing duplicates.
Step 2: Compare options with this goal
Only It ensures messages are processed only once, avoiding duplicates. describes avoiding duplicates by processing messages once.
Final Answer:
It ensures messages are processed only once, avoiding duplicates. -> Option A
Quick Check:
Exactly-once = no duplicates [OK]

Quick Trick: Exactly-once means no duplicate effects on data [OK]

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