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Apple App Development with Swift Certified User Sample Questions:

1. Which two statements about building an app are true? (Choose 2.)

A) You can run your app in the simulator with Generic iOS Device chosen.
B) You can preview a View in the Canvas without running your app.
C) You can run an app on your phone and get debug information in Xcode.
D) Your phone must always be physically attached to your Mac to run your apps from Xcode on it.
E) You need a paid Apple Developer account in order to run your app on your phone.

2. Review the code.
struct ContentView: View {
let fruits = [ " Apple " , " Banana " , " Kiwi " ]
var body: some View {
List(fruits, id: \.self) { fruit in
Text(fruit)
.font(.headline)
.padding()
}
}
}
Which of the following statements is true about the code?

A) The List view is using the fruits array to display the contents as individual rows.
B) The id: \.self in the List view should be rewritten as id: /self
C) KeyPaths are used here to extract the font and padding properties dynamically.
D) The id: \.self in the List view is not necessary and may be omitted.

3. Complete the code by selecting the correct option from each drop-down list to create the following screen.

Note: You will receive partial credit for each correct answer.

4. Review the code snippet.

What is the output from each print statement?

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

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

Solutions: