📝 **Question:** A celebrity tweets a product link. Your /product/123 cache key expires. 50K concurrent requests slam your DB. Which fix matches?
📋 Pick the right answer.
💡 **Hint:** Re-read the theory above if unsure.
📝 **Question:** A celebrity tweets a product link. Your /product/123 cache key expires. 50K concurrent requests slam your DB. Which fix matches?
📋 Pick the right answer.
💡 **Hint:** Re-read the theory above if unsure.
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