Caching

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1. 01 Explain Cache-Control headers and the difference between max-age, no-cache, and no-store. Medium
2. 02 Design an HTTP caching strategy for a mix of static assets, API responses, and user-specific data. Hard
3. 03 Explain how the browser's HTTP cache decides between using a cached response and revalidating. Medium
4. 04 Debug a scenario where users see stale content after a deploy despite correct cache headers. Hard
5. 05 Explain in-memory caching tradeoffs: speed vs persistence vs memory pressure. Medium
6. 06 Design an in-memory LRU cache for API responses in a single-page app. Hard
7. 07 Explain how browsers use disk cache versus memory cache for different resource types. Medium
8. 08 Explain the tradeoffs of Service Worker cache storage compared to the browser's native HTTP cache. Hard
9. 09 Explain cache keys and how query parameters affect CDN cache hit rates. Medium
10. 10 Design a CDN cache invalidation strategy for a news site publishing breaking updates. Hard
11. 11 Explain how TanStack Query's stale-while-revalidate caching model works. Medium
12. 12 Design a React Query caching strategy for a paginated list with optimistic mutations. Hard
13. 13 Explain the SWR (stale-while-revalidate) pattern and how the SWR library implements it. Medium
14. 14 Compare SWR and React Query for a dashboard with frequent background refetching. Hard
15. 15 Explain strategies for cache invalidation and why it's considered a hard problem. Medium
16. 16 Design a cache invalidation flow across CDN, server, and client caches after a content update. Hard