Which is the wrong definition of a protocol in Swift?

Which of the following structures has both computed and stored properties?

All Swift classes must inherit from which root class?

Which keyword is used on a function inside an Enumeration to indicate that the function will modify 'self'?

Which of these is a valid definition of a generic function that incorporates inout parameters in Swift?

Which of the following statements could be used to determine if a given variable is of String type?

What is the raw/underlying type of this enum? enum Direction {case north, south, east, west}

What is the error in this code? let x = 5; guard x == 5 { return }

What is this code an example of? let val = (Double)6

Typical range of type Int8 is __

The following are unordered collection types: