The N + 1 Problem is one of the most commonly asked interview questions in Entity Framework Core.
N + 1 Problem in EF Core (Interview Explanation)
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Exception Handling — Interview Guide
Exception Handling is a mechanism to handle runtime errors so that the application doesn't crash and can continue execution gracefully.
Extension Methods in C# (Interview Guide)
Extension methods are a powerful feature in C# that allow you to add new methods to existing types without modifying their source code.
Multi-Threading in C#
Multi-threading allows a program to run multiple tasks at the same time using multiple threads.
Server-Side Session vs Cache
Server-Side Session vs Cache is a very common interview topic — especially for .NET / Web API / System Design roles.
Records in C#
Records in C# are reference types (by default) designed for immutable data models with value-based equality.
They were introduced in C# 9 and improved in C# 10 & C# 11.
Repository Pattern
The Repository Pattern is one of the most commonly asked design pattern interview questions, especially for .NET / backend developers.
JWT Token Authentication — Interview Guide
JWT is one of the most commonly asked interview topics for backend developers, especially if you work with .NET / APIs / Angular / React.
REST API Interview Questions
Here are REST API Interview Questions & Answers explained in a clear, interview-focused way with examples (especially .NET).
Tricky OOPS Interview Questions
Here are Tricky OOPS Interview Questions that are commonly asked and used to differentiate experienced developers.