Module quiz: Functions and closures :Programming Fundamentals in Swift (Meta iOS Developer Professional Certificate) Answers 2026

Question 1

Functions are special cases of closures with a name and don’t capture any values.

❌ True
✅ False

Question 2

Which of the following is the correct layout when defining a function in Swift?

❌ func function-name: return type <- (argument list)
❌ functionname (argument list) : return type
✅ func function-name (argument list) -> return type

Question 3

Which of the following is the correct layout when defining a closure in Swift?

✅ { (argument list) -> return type in code to be executed}
❌ [ (argument list) -> return type in code to be executed]
❌ ( (argument list) -> return type in code to be executed)

Question 4

Which of the following is the way in which you can call this function?

✅ hiThere(firstNamefn:”John”, secondNamesn:”Smith”)
❌ hiThere(fn:”John”, sn:”Smith”)
❌ hiThere(“John”, “Smith”)

Question 5

Closures are self-contained blocks of functionality that can be stored in a variable.

✅ True
❌ False

Question 6

A function can be identified by a combination of its name, parameter types and return types.

❌ True
✅ False

Question 7

You can pass a closure as a function parameter.

✅ True
❌ False

Question 8

You cannot use an argument label on an in-out parameter.

❌ True
✅ False

Question 9

Function parameters are immutable by default.

✅ True
❌ False

Question 10

Only one in-out parameter is allowed for each function.

❌ True
✅ False

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