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Which benefit does an event store provide when tracking changes in microservices?

easy📝 Conceptual Q1 of 15
Microservices - Event-Driven Architecture
Which benefit does an event store provide when tracking changes in microservices?
AIt maintains an immutable log of all state changes
BIt automatically deletes old events to save space
CIt allows direct modification of past events
DIt stores only the latest snapshot without history
Step-by-Step Solution
Solution:
  1. Step 1: Understand event store characteristics

    An event store records every change as an immutable event, preserving history.
  2. Step 2: Evaluate options

    It maintains an immutable log of all state changes correctly states immutability and full history tracking. Options B, C, and D contradict event store principles.
  3. Final Answer:

    It maintains an immutable log of all state changes -> Option A
  4. Quick Check:

    Event stores keep immutable event logs [OK]
Quick Trick: Event stores keep immutable event logs [OK]
Common Mistakes:
MISTAKES
  • Thinking event stores allow event modification
  • Assuming event stores only keep latest state
  • Believing event stores delete old events automatically

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