Question 1

What are the Gang of Four (GoF) Design Patterns?

Accepted Answer

GoF design patterns are 23 classic software design patterns categorized into Creational (object creation), Structural (class/object composition), and Behavioral (object interaction and responsibility distribution).

Question 2

Why are design patterns important in C# and .NET?

Accepted Answer

Design patterns provide battle-tested solutions to common software design problems, improve code maintainability, facilitate testability through dependency injection, and establish common engineering vocabulary across teams.

GoF Design Patterns Checklist