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Hard Design: URL Shortener (TinyURL)

You want to guarantee that a short URL redirect returns in <10ms p99. Which architecture achieves this?

— Tests your understanding of this concept.

Answer Options

A Single server with SSD database
B Read replicas + application cache
C Redis cache + CDN edge caching
D DynamoDB DAX + Regional caching

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This question is from the Design: URL Shortener (TinyURL) topic (System Design Cases).

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