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

2. Which two statements about building an app are true? (Choose 2.)

A) You can run an app on your phone and get debug information in Xcode.
B) You can run your app in the simulator with Generic iOS Device chosen.
C) You can preview a View in the Canvas without running your app.
D) Your phone must always be physically attached to your Mac to run your apps from Xcode on it.
E) You need a paid Apple Developer account in order to run your app on your phone.

3. 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

4. Review the code snippet.

Move each item from the list on the left to the correct code segment on the right. You may use each item only once.
Note: You will receive partial credit for each correct response.

5. Refer to this image to complete the code.

Note: You will receive partial credit for each correct answer

Solutions: