After a product price update, different application instances continue serving the old cached price beyond the allowed freshness window. Which change addresses this directly?

Choose the single best answer.

A.Treat an in-process cache on each instance as automatically synchronized
B.Invalidate or update affected distributed-cache entries after the database change
C.Add more web instances without changing invalidation
D.Increase cache TTL further

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✓ Correct answer

Invalidate or update affected distributed-cache entries after the database change

Cache invalidation or update aligns the reusable copy with authoritative changes. More instances can create more stale local copies, a longer TTL extends staleness, and in-process caches are not automatically shared or synchronized. Source guide: PDF page(s) 53.

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