KCNA Cloud Native Architecture Practice Question
Which component in an event-driven architecture is responsible for decoupling event producers from consumers?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Event broker
An event broker (or message broker) acts as an intermediary that receives events from producers and delivers them to consumers, allowing loose coupling. The API gateway handles synchronous requests. The service mesh handles service-to-service communication. The config server manages configuration.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Config server
Why it's wrong here
Config server provides configuration to applications, not event handling.
- ✓
Event broker
Why this is correct
Event broker (e.g., Kafka, RabbitMQ) decouples producers and consumers by managing event streams.
- ✗
API gateway
Why it's wrong here
API gateway is for synchronous REST/gRPC, not for event decoupling.
- ✗
Service mesh
Why it's wrong here
Service mesh manages service-to-service communication, not event streams.
Go deeper
Related to this question
Learn chapter
Cloud Native Architecture and Concepts
Key term
Service Mesh
A service mesh is a dedicated infrastructure layer that manages communication between microservices, handling tasks like service discovery, load balancing, encryption, and observability without requiring changes to application code.
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