Scott Lilly • 9/1/2025

C# Interview Questions and Answers (2025)

This article serves as a detailed study sheet for C# programming interviews. It explains key concepts including the differences between abstract classes and interfaces, stack vs. heap memory, IEnumerable vs. IQueryable, ref vs. out parameters, and boxing/unboxing. It is a technical resource aimed at helping developers prepare for software engineering roles requiring C# knowledge.

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#c #interface #abstract class