C# Programming - MCQ Practice Questions

What is the primary purpose of using interfaces in C#?

In C# inheritance, which keyword allows accessing members of the parent class?

Which of the following best describes encapsulation in C#?

What is the purpose of the 'base' keyword in C#?

What is the output of this C# code? public class Employee { private string name = "John"; public Employee(string n) { name = n; } } Employee emp = new Employee("Alice"); Console.WriteLine(emp.name);

Which of the following best describes the 'this' keyword in C#?

What is the primary purpose of ASP.NET in web development?

Which of the following is the latest version of ASP.NET as per 2024-2025?

What does CLR stand for in the context of .NET?

In ASP.NET Core, what is the purpose of the appsettings.json file?

What does MVC stand for in ASP.NET MVC?

What is the primary purpose of encapsulation in OOP?

Which keyword is used to create a class that cannot be instantiated in C#?

In C#, what is the correct syntax to implement multiple interfaces in a class?

Which of the following is NOT a pillar of OOP in C#?

In C#, what is the primary purpose of using an interface?

Which statement is TRUE about abstract methods in C#?

Consider a payment processing system where PaymentProcessor is an abstract class with an abstract method ProcessPayment(). CreditCardProcessor and UPIProcessor are derived classes. What will happen if you try to instantiate PaymentProcessor directly in C#?

Which namespace in C# contains the collections like List<T>, Dictionary<K,V>, and Queue<T>?

What is the main difference between ArrayList and List<T> in C#?