C#/.NET – 50 Essential Interview Questions (Mid Level)

Source: https://www.udemy.com/course/csharpnet-50-essential-interview-questions-mid-level/

What you’ll learn

Design principles, patterns & advanced C#. 250+ interviews conducted — I know what’s asked. Don’t memorize, understand.
Learn what’s really asked in C# interviews — based on 250+ real technical interviews, not textbook theory.
Master advanced C# topics that interviewers love: events, reflection, pattern matching, nullable reference types, and more.
Apply design principles and 5 popular design patterns — understand when and why to use each one.
Understand C# collections in depth — know the differences and trade-offs interviewers expect you to explain.
Practice with 10 in-browser coding exercises to reinforce what you’ve learned — no setup needed.
Get two free e-books — one with all mid-level answers, one reviewing junior-level fundamentals just in case.
Study on the go with printable flashcards and an Anki deck — review key concepts anywhere, anytime.

Requirements

You’re comfortable with C# basics — variables, loops, classes, and OOP fundamentals.
Not sure if you’re ready? A free e-book reviewing 15 junior-level topics is included to help you get up to speed.