[Solved] In Kafka event sourcing, how does the event log contribute to state reconstruction? — Ans: It stores all state changes as immutable events to replay and rebuild state | Kafka

Kafka - Event-Driven Architecture

In Kafka event sourcing, how does the event log contribute to state reconstruction?

AIt stores all state changes as immutable events to replay and rebuild state

BIt caches the latest state snapshot for quick access

CIt filters events to only keep the most recent update per entity

DIt deletes old events to reduce storage usage

Step-by-Step Solution

Solution:

Step 1: Understand event log role
The event log in Kafka stores all changes as immutable events.
Step 2: State reconstruction
Replaying these events allows rebuilding the current state from scratch.
Final Answer:
It stores all state changes as immutable events to replay and rebuild state -> Option A
Quick Check:
Event log = immutable event storage for replay [OK]

Quick Trick: Event log stores all changes immutably for replay [OK]

Common Mistakes:

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In Kafka event sourcing, how does the event log contribute to state reconstruction?