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Module 1 · Safe reads and concurrent cache refreshes1 locked3 lessons

01Cache Keys, Tenant Boundaries, and Cache-Aside Reads
02Absolute and Sliding Expiration with Invalidation Races
03Concurrent Cache Misses and Bounded Stampede Protection (included with Full Access)

Module 2 · HybridCache, Invalidation and Failure Handling5 locked5 lessons

04Bounded Memory Caches: SizeLimit, Eviction Priorities and Statistics (included with Full Access)
05HybridCache in Practice: Stampede Coalescing, Copies, Tags and Multi-Node Staleness (included with Full Access)
06Versioned Keys: Generation Namespaces and Schema Versions Across Deployments (included with Full Access)
07Negative Caching and Failure Caching: Not Found Is Data, Errors Are Not (included with Full Access)
08When the Distributed Cache Fails: Timeouts, Fallback and a Circuit Breaker (included with Full Access)

Module 3 · HTTP and Output Caching, Testing and Observability3 locked3 lessons

09Output Caching in ASP.NET Core: Defaults, Cache Keys and Tenant Leaks (included with Full Access)
10HTTP Caching Contracts: Cache-Control, ETags, 304 and If-Match (included with Full Access)
11Testing and Observing Caches: Gates, Every Interleaving and Hit-Ratio Metrics (included with Full Access)

Module 4 · Practice and Assessment1 locked1 lesson

12Final Mock Interview: 25 Questions on ASP.NET Core Cache Correctness (included with Full Access)

Module 2 · HybridCache, Invalidation and Failure Handling · Lesson 6 of 12

Versioned Keys: Generation Namespaces and Schema Versions Across Deployments

13 min readTechInterviewNotes Editorial TeamUpdated 28 Oct 2026Save

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TechInterviewNotes Editorial Team · Updated 28 Oct 2026 ·