What is the most practical duplicate-prevention strategy in a distributed notification pipeline?
Practice this question from Quiz: Design a Notification System, with options and an explanation.
Question
What is the most practical duplicate-prevention strategy in a distributed notification pipeline?
Option A
Rely on provider goodwill
Option B — Correct answer
At-least-once processing with idempotency keys
Option C
Disable retries entirely
Option D
Store all templates in browser local storage