Which of the following statements are correct about properties in the Apple Swift language?

In Apple Swift, which of the following statements are correct regarding protocols?

In Apple Swift, which of the following options hold true?

In Apple Swift, which of the following operators cannot be overloaded?

What is the name of the Xcode generated header file used to import Swift classes into an Objective-C Class given a product module named Example?

What does a retainCount represent in ARC?

How can you avoid a strong reference cycle in a closure?

How many values does vals have after this code is executed? var vals = Set = ["4", "5", "6"] vals.insert("5")

DidSet and willSet are examples of _?

What describes this line of code? let val = 5

When a function takes a closure as a parameter, when do you want to mark is as escaping?