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

Apple App Development with Swift Certified User Sample Questions:

1. Given the function, which two function calls are valid? (Choose 2.)

A) let sum r\ ght5um(100, by: 50)
B) let sum = rightSum(100, num2: SO, and: 20)
C) let sun = rightSum(numl: 100, num2: 50)
D) let Sun - rightSum(numl: 100, by: SO, and: SO)
E) let sum - rightSum(100, by: 30, and: 20)

2.
Which two assignments of a value to direction are allowed? (Choose 2.)

A) direction = north
B) direction = direction.north
C) direction = .north
D) direction = CompassPoint.north
E) direction = CompassPoint(north)

3. Why does the initializer for the following struct need the keyword self?

A) self is always needed when you are setting properties in an initializer.
B) self is only needed when the property does not have a default value.
C) self is used to indicate to the reader that the parameter is being referenced.
D) self is needed to distinguish between the property and the parameter with the same name.

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

5. 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(animal.name)
B) Text(Animals[animal].name)
C) Text(animals[animal].name)
D) Text(Animal.name)

Solutions: