Why must both == and != be defined in C#?

What is the output of the following code snippet? decimal roundedValue1 = Math.Ceiling(-2.5m); decimal roundedValue2 = Math.Ceiling(2.5m); Console.WriteLine(roundedValue1); Console.WriteLine(roundedValue2);

Which of the following are reference data types in C#?

Which of the following creates an instance of a generic type, in a function which has no parameters?

Which of the following implements the ISerializable interface?

What happens when the below code is executed? abstract class Shape { public abstract void draw(); }class Rectangle: Shape{  public override void draw();   //Some more member functions.....}class CCheck{ public static void Main() {    Shape objShape;  } }

What keyword prevents a class from being inherited by another class?

What is the GAC?

Can you prevent your class from being inherited by another class?

In C#, the method used to sort an array in the ascending order is?

Which symbol is used to prefix a preprocessor directive?