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Why might an event-driven microservice architecture be preferred over request-driven for high scalability?

hard📝 Conceptual Q10 of 15
Microservices - Event-Driven Architecture
Why might an event-driven microservice architecture be preferred over request-driven for high scalability?
ABecause it requires fewer services overall
BBecause it forces services to wait for each other
CBecause it eliminates the need for network communication
DBecause it decouples services and allows asynchronous processing
Step-by-Step Solution
Solution:
  1. Step 1: Understand scalability factors

    High scalability requires services to operate independently without blocking each other.
  2. Step 2: Evaluate event-driven benefits

    Event-driven architecture decouples services and uses asynchronous messaging, enabling better scalability.
  3. Final Answer:

    Because it decouples services and allows asynchronous processing -> Option D
  4. Quick Check:

    Decoupling + async = scalability [OK]
Quick Trick: Async decoupling boosts scalability [OK]
Common Mistakes:
MISTAKES
  • Thinking event-driven forces waiting
  • Assuming fewer services means scalability
  • Believing network is not used

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