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Apple App Development with Swift Certified User Sample Questions:

1. Review the code:

Given a struct called Animal, what line of code should be added on line 5 in order to produce the output shown?

A) Text(animals[animal].name)
B) Text(Animals[animal].name)
C) Text(Animal.name)
D) Text(animal.name)

2. Select the area in Xcode that allows you to display the Preview Canvas.

3. Given the function, which two function calls are valid? (Choose 2.)

A) let sun = rightSum(numl: 100, num2: 50)
B) let Sun - rightSum(numl: 100, by: SO, and: SO)
C) let sum - rightSum(100, by: 30, and: 20)
D) let sum r\ ght5um(100, by: 50)
E) let sum = rightSum(100, num2: SO, and: 20)

4. You have a set of Views within a ZStack that produce the screen below:

Arrange the lines of code that will make up the ZSlack so that the View appears as shown.

5. What is the code snippet an example of?

A) Implicitly unwrapped optional
B) Force unwrapping
C) Optional chaining
D) Optional binding

Solutions: