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Apple App Development with Swift Certified User Sample Questions:

1. Review the code snippet.

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

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

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

3. Review the code snippet and identify what happens when the program is executed.

A) Only menu items including " Pizza " . " Burger " , " Chicken " . " Pasta " . " Salad " are printed.
B) The for loop prints all the menu items in the array.
C) Only menu items including " Burger " . " Chicken " . " Pasta " . " SaJad " . " Steak " are printed.
D) Only menu items including " Burger " . " Chicken " . " Pasta " . " Salad " are printed.

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

5. Refer to this image to complete the code.

Note: You will receive partial credit for each correct answer

Solutions: