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

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

2. What is the code snippet an example of?

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

3. In SwiftUI, how can you extract a subview from a main view to make the code more modular?

A) Use @State to manage subview content and use a binding to create a two-way connection.
B) Add the subview's code directly into the main view's body.
C) Declare the subview as a variable inside the main view and call it directly.
D) Create a new SwiftUI view struct and call it in the main view.

4. Review the code snippet.

What will print after the final line of code is executed?

5. 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.

Solutions: