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

2. Review the code.

When entered into the TextField, which number will display a blue canvas on the SecondView?

A) 1
B) 3
C) 2
D) 4

3. 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(Animal.name)
C) Text(Animals[animal].name)
D) Text(animal.name)

4. Review the code snippet.

The " faces " dictionary contains emojis and their descriptions.
Which code will create an array named " emo)is " that will copy all the emojis from the " faces " dictionary?

A) let emojis List(faces.values())
B) let emojis = Array(faces.keys)
C) let emojis - Array(faces.values)
D) let emojis - List(faces.koys())

5. You have created a view which includes some formatted text:

You decide to extract this formatted text into a subview so that you can reuse the formatting for other texts.
You highlight the Text and choose Extract subview.
You refactor ExtractedView to BigGreenTextView.
You add the line let text: String to the extracted view above the body.
You replace " That ' s all folks " with a reference to text
How should you call this extracted View from the original View?

A) BigGreenTextView(text: text)
B) BigGreenTextView( " That ' s all folks " )
C) BigGreenTextView(text: " That ' s all folks " )
D) BigGreenTextView(text)

Solutions: