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Q: Notification sent?

Short answer: Why this design: Prevents blocking operations Improves scalability Handles failures gracefully Follow-up (Interviewer traps you): “What if payment fails?” Strong Answer: Retry using Polly (3 attempts) If still fails → move message to Dead Letter Queue Trigger compensation logic → cancel order 👉 This answer shows real-world failure handling Say this in the interview Define — one clear sentence (the short answer above). Example — relate it to a project like ShopNest or your real work. Trade-off — when you would not use it.

Short answer: Why this design: Prevents blocking operations Improves scalability Handles failures gracefully Follow-up (Interviewer traps you): “What if payment fails?” Strong Answer: Retry using Polly (3 attempts) If still fails → move message to Dead Letter Queue Trigger compensation logic → cancel order 👉 This answer shows real-world failure handling

Say this in the interview

Define — one clear sentence (the short answer above).
Example — relate it to a project like ShopNest or your real work.
Trade-off — when you would not use it.

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