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Apple App Development with Swift Certified User Sample Questions:

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

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. 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.

4. Review the code snippet.

The code snippet does not compile.
Which two actions will fix the errors? (Choose 2.)

A) Change the initial value of totalCost from o to 0.0.
B) Chang the type of unitPrice from Double to Int.
C) Change the type of quantity from int to Double .
D) Change shipping from let to var to make it mutable.
E) Change totalCost from let to var to make it mutable.

5. Match the Swift Properly Wrapper names to the correct descriptions.

Solutions: