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

2. Review the code.
Note: You might need to scroll to see the entire block of code.

A breakpoint is set on line 3. When the application is run. it will stop at line 3. You need to debug the code.
Drag each debugging control from the left to the correct instruction on the right. You will receive partial credit for each correct answer

3. Review the code snippet.

What will print after the final line of code is executed?

4. 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.

5. You are creating or updating human resource records for your employees. For each identifier, select whether it is a Constant or a Variable Note: You will receive partial credit for each correct answer.

Solutions: