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Apple App-Development-with-Swift-Certified-User Exam Syllabus Topics:

Apple App Development with Swift Certified User Sample Questions:

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

2. Review the code snippet.

Which statement completes the code snippet so that:
* The lastReleaseDate remains the same when nextApplePhone.releaseDate is nil.
* The lastReleaseDate updates to the nextApplePhone.releaseDate when nextApplePhone.releaseDate is NOT nil.

A) nextApplePhone.releaseDate! : lastReleaseDate
B) nextApplePhone.releaseDate : lastReleaseDate
C) lastReleaseDate : nextApplcPhone.rcleaseDate!
D) lastReleaseDate : nextApplePhone.releaseDate

3. 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.

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

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

Solutions: