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Why is it important to configure a consumer group ID in Spring Boot Kafka listeners?

hard📝 Conceptual Q10 of 15
Spring Boot - Messaging
Why is it important to configure a consumer group ID in Spring Boot Kafka listeners?
AIt allows Kafka to manage message delivery and load balancing among consumers
BIt enables Kafka to encrypt messages for the group
CIt is required to connect to the Kafka broker
DIt defines the topic name automatically
Step-by-Step Solution
Solution:

  1. Step 1: Understand consumer group role

    Consumer group ID lets Kafka distribute messages among consumers in the same group for load balancing.

  2. Step 2: Exclude incorrect roles

    Group ID does not handle encryption, broker connection, or topic naming.

  3. Final Answer:

    It allows Kafka to manage message delivery and load balancing among consumers -> Option A

  4. Quick Check:

    Group ID manages delivery and load balancing [OK]
Quick Trick: Group ID enables load balancing among consumers [OK]
Common Mistakes:
  • Thinking group ID encrypts messages
  • Assuming group ID connects to broker
  • Believing group ID sets topic name

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