Three Tricky .NET 11 Scenarios Test EF Core 11 and ASP.NET Core 11 Knowledge

A developer has published a 20-question practice quiz to help teams check their code for subtle breaking changes in EF Core 11 and ASP.NET Core 11 before the November 2026 general availability release. The article previews three real-world scenarios, covering null vector columns in a RAG re-ranking service, a Managed Identity connection failure in Azure staging, and validation not applying across assemblies in Minimal API. Readers are invited to answer multiple-choice questions in the comments before checking the answer key. The full quiz also includes 17 additional scenarios, such as complex types on TPT/TPC hierarchies.