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Apple App Development with Swift Certified User Sample Questions:

1. You need to create a Watchpoint in Xcode. In which order should you complete the actions? Move all the actions to the answer area and place them in the correct order.

2. In SwiftUI, how can you extract a subview from a main view to make the code more modular?

A) Use @State to manage subview content and use a binding to create a two-way connection.
B) Declare the subview as a variable inside the main view and call it directly.
C) Create a new SwiftUI view struct and call it in the main view.
D) Add the subview's code directly into the main view's body.

3. Match the Swift Properly Wrapper names to the correct descriptions.

4. Review the code.
var capitalCities = [ " USA " : " Washington D.C. " , " Spain " : " Madrid " , " Peru " : " Lima " ] Which two statements add the capital city of " Italy " to the dictionary? (Choose 2.)

A) capitalCities[ " Italy " ] = " Rome "
B) capitalCities.updateValue( " Rome " , forKey: " Italy " )
C) capitalCities = capitalCities + [ " Italy " : " Rome " ]
D) capitalCities.append([ " Italy " : " Rome " ])
E) capitalCities[ " Rome " ] = " Italy "

5. When you press ' Show Button ' on your app. a modal View appears.
Complete the code by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct answer.

Solutions: