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Page 13 of 25
Explains controller actions, result types, status codes, thin controllers, and HTTP response generation.
Explains transient, scoped, and singleton lifetimes in ASP.NET Core APIs and production bugs caused by wrong lifetime choices.
Explains how App Service plans provide compute capacity, how scale-out affects app instances, and why APIs need stateless design.
Introduces managed heap cleanup, generational collection, object lifetime, and why allocation behavior affects .NET services.
Explains endpoint routing, route templates, HTTP method matching, endpoint metadata, and ambiguity problems.
Explains deployment versus release, staged enablement, kill switches, cleanup, and App Service slot interaction.
Connects API query shape to index order, selectivity, execution plans, write cost, and safe production rollout.
Explains how App Service can resolve Key Vault references through managed identity and what to watch during rotation and environment setup.
Explains when to capture dumps, what to compare, and how to use roots without turning dumps into guesswork.
Explains SQL joins for API response shapes with practical .NET data-access examples and production trade-offs.
Draws a short atomic database boundary around one invariant while moving network side effects into explicit, recoverable workflow states.
Explains EF Core query performance diagnostics with practical .NET data-access examples and production trade-offs.
Explains a practical approach to diagnosing failed builds, tests, package restore, environment issues, or flaky checks.
Explains a structured response to a failed production deployment in a .NET application.
Explains safe EF Core migrations with practical .NET data-access examples and production trade-offs.
Explains release notes and changelog thinking for engineering, QA, support, and product communication.
Explains semantic versioning for .NET applications and how it communicates release impact.
Explains transient database errors, retry strategy, EF Core execution strategy, idempotency, timeouts, and avoiding retry storms.
Propagates request cancellation through async dependencies while keeping committed side effects and timeout policy explicit.
Covers App Service app settings, environment-specific configuration, restarts, slot settings, and avoiding hard-coded production values.
Explains DbContext lifetime and unit-of-work boundaries with practical .NET data-access examples and production trade-offs.
Explain how Task.WhenAll behaves when one or more tasks fail and how to inspect failures safely.
Covers using managed identity and Microsoft Entra authentication for Azure SQL access from a .NET API.
Covers allocation rate, collection frequency, latency symptoms, and safe production steps for GC-heavy services.