Answer:   An enumeration (enum) is a set of named integer constants. An enumerated type is declared using the enum keyword. C# enumerations are value data type. In other words, enumeration contains its own values and cannot inherit or cannot pass inheritance.

The default type of the enumeration elements is int. By default, the first enumerator has the value 0, and the value of each successive enumerator is increased by 1.

Answer:   Enum is a value type. Enum is a collection of constants which means it is a collection of string constants which are representing collection of integer constants. Int is the default data type of enum.