Answer
Event Sourcing stores all changes to an application's state as a sequence of events instead of only storing the latest state. The current state is rebuilt by replaying events, enabling audit trails, temporal queries, and strong consistency.
Quick Answer
Event Sourcing stores all changes to state as a sequence of events instead of just the current value. To get current state, replay all events. Benefits: full audit trail, ability to replay events to rebuild state, natural fit with event-driven architecture. Downside: querying current state is more complex - usually solved with a projected read model.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ