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Apple App Development with Swift Certified User Sample Questions:

1. Review the code snippet and identify what happens when the program is executed.

A) Only menu items including " Pizza " . " Burger " , " Chicken " . " Pasta " . " Salad " are printed.
B) Only menu items including " Burger " . " Chicken " . " Pasta " . " Salad " are printed.
C) The for loop prints all the menu items in the array.
D) Only menu items including " Burger " . " Chicken " . " Pasta " . " SaJad " . " Steak " are printed.

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

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

4. Given the function definition, which two statements call the function correctly? (Choose 2.)

Based on the image provided, here is the text for each of the multiple-choice options:

A) schedule(who name: " Jane Doe " , from starting: " 9:30am " , to ending: " 10:30am " )
B) schedule(who: " Jane Doe " , from: " 9:30am " , to: " 10:30am " , " Office " )
C) E. schedule(who: " Jane Doe " , from: " 9:30am " , to: " 10:30am " )
D) schedule(who: " Jane Doe " , from: " 9:30am " , to: " 10:30am " , place: " Office " )
E) D. schedule(name: " Jane Doe " , starting: " 9:30am " , ending: " 10:30am " , place: " Office " )

5. If View A calls View B, which Swift Property Wrapper would you use in View B in order to return the value of a state to View A?

A) @Observable
B) @Environment
C) @Binding
D) @State

Solutions: