Which of the following is a ternary operator?

Can properties be overridden in Swift?

What will be the output of the following code?

What is the return type of a Swift subscript?

Which of the following is a valid protocol type in Swift?

What are the === and !== operators called in Swift?

When is memory allocated for type methods in Swift?

When using protocols with existing classes in Swift, what is the recommended convention to make the code easy to read and understand?

Which one of the following is not allowed in Swift?

Is the syntax for the following enumeration correct?

enum Planet {

 case mercury, venus, earth, mars, jupiter, saturn, uranus, neptune

}