Can the value of dynamic type variable be changed at runtime?

Yes. Dynamic type variable are run time variables which means that their value and type are defined at run time. Also, it is not necessary for a dynamic type to be initialized at complile time. The below code snippet gives more insight about dynamic type variable: dynamic var1 = "Hello"; //Here,the data type of variable var1 is string. var1 = 1; //Now, the data type of vairable var1 is changed to int.