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Which of the following is the correct way to ensure events are replayed in the right order?

easy📝 Architecture Q12 of 15
Microservices - Event-Driven Architecture
Which of the following is the correct way to ensure events are replayed in the right order?
AIgnore event order since it doesn't affect state
BReplay events randomly to speed up processing
CReplay only the latest event to save resources
DStore events with timestamps and replay by sorting them chronologically
Step-by-Step Solution
Solution:
  1. Step 1: Understand importance of event order

    Events must be replayed in the exact order they occurred to correctly rebuild system state.
  2. Step 2: Identify correct ordering method

    Using timestamps to sort events chronologically ensures the correct sequence during replay.
  3. Final Answer:

    Store events with timestamps and replay by sorting them chronologically -> Option D
  4. Quick Check:

    Correct event order = chronological replay [OK]
Quick Trick: Replay events by timestamp order to keep state consistent [OK]
Common Mistakes:
MISTAKES
  • Replaying events randomly
  • Skipping older events
  • Ignoring event order

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