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

Apple App Development with Swift Certified User Sample Questions:

1. What is the code snippet an example of?

A) Optional binding
B) Force unwrapping
C) Implicitly unwrapped optional
D) Optional chaining

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

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

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

4. Complete the code that conforms to the View protocol by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct answer.

5. Review the code snippet.

The " faces " dictionary contains emojis and their descriptions.
Which code will create an array named " emo)is " that will copy all the emojis from the " faces " dictionary?

A) let emojis - Array(faces.values)
B) let emojis = Array(faces.keys)
C) let emojis - List(faces.koys())
D) let emojis List(faces.values())

Solutions: