200-901 Software Development and Design Practice Question
Which THREE of the following are benefits of using event-driven architecture in a distributed system? (Choose three.)
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
✓
Loose coupling between services
Event-driven architecture promotes loose coupling, scalability, and real-time responsiveness.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Loose coupling between services
Why this is correct
Services communicate via events without direct dependencies.
- ✓
Real-time data processing
Why this is correct
Events can be processed as they occur.
- ✓
Scalability through independent processing
Why this is correct
Event handlers can be scaled independently.
- ✗
Eliminates the need for message brokers
Why it's wrong here
Event-driven often relies on message brokers (e.g., Kafka, RabbitMQ).
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Simpler debugging due to synchronous communication
Why it's wrong here
Event-driven is asynchronous, which can be harder to debug.
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