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

Section

Objectives

Swift Programming Language

- Use functions

1. Create and call a function
2. Implement default parameter values
3. Demonstrate how to use a function's return value
4. Organize and structure code
5. Customize internal, external, and anonymous naming of parameters in functions

- Demonstrate proper use of structs, classes

1. Differentiate between structures and classes
2. Differentiate between various initializers
3. Define and use property observers
4. Define and use properties and methods

- Manage data using collection types

1. Arrays
2. Dictionaries

- Evaluate variable scope and shadowing
- Declare and use basic Swift types

1. Interpret and use basic types
2. Demonstrate when to use constants and variables
3. Describe and use data types and operators
4. Demonstrate the use of type casting in both safe and unsafe ways

- Demonstrate the use of Optional types

1. Apply Optional binding and Optional chaining (including but not limited to if let, guard let)
2. Demonstrate how to unwrap Optionals safely

- Know how and when to apply control flow and loops

1. Use Guard
2. Use range operators
3. Use logical operators

View Building with SwiftUI

- Use @State, @Binding, @Environment, and/or Observable to share data between Views
- Position and/or layout a single SwiftUI View with standard Views and modifiers
- Create a multi-view app with navigation Stacks, Links, and/or Sheets
- Create multiple Views to implement app logic
- Extract Subviews to simplify the structure of an overlarge View
- Use List Views to iterate through collections

Xcode Developer Tools

- Identify and use the features of the Xcode interface

1. Navigate Xcode
2. Demonstrate how to access documentation and help
3. Create and modify views with Interface Builder

- Use debugging techniques including, but not limited to, breakpoints, watchpoints, and logging to resolve errors

1. Set breakpoints and step through code line by line

- Demonstrate how to build and run an app

1. on the iOS device
2. on the iOS simulator

Apple App Development with Swift Certified User Sample Questions:

Question #1

Complete the code by selecting the correct option from each drop-down list to create the following screen.

Note: You will receive partial credit for each correct answer.

Reveal Solution Discussion 0

Correct Answer:

Question #2

Review the code.

When entered into the TextField, which number will display a blue canvas on the SecondView?

A. 3
B. 2
C. 1
D. 4

Reveal Solution Discussion 0

Correct Answer: A 🗳️

Explanation: Only visible for Test4Engine members. You can sign-up / login (it's free).

Question #3

Review the code snippet.

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

Reveal Solution Discussion 0

Correct Answer:

Answer the question by typing in the box.
2
Explanation:
This question belongs to Swift Programming Language , specifically the objective on variable scope and shadowing .
The code first declares:
let even = 2
This creates a constant named even in the outer scope with the value 2.
Inside the for loop, the code declares another constant with the same name:
let even = num * 2
This inner even exists only inside the loop body. It shadows the outer even, which means that within the loop, the name even refers to the loop's local constant, not the original one. However, that inner constant goes out of scope at the end of each loop iteration.
After the loop finishes, the inner even no longer exists. So when the final line runs:
print(even)
Swift uses the original outer constant, which is still 2.
So the output is:
2
This question tests two important Swift concepts:
* Scope : where a variable or constant can be accessed
* Shadowing : when a local declaration temporarily hides another declaration with the same name Therefore, the correct answer is 2 .

Question #4

For each statement about Navigation in SwiftUI. select True or False.

Reveal Solution Discussion 0

Correct Answer:

Explanation:
* You can treat a NavigationLink like a button, and run some Swift code when it is pressed. - False
* NavigationSplitView can be used to do navigation differently on different device sizes. - True
* You can put a header on your present View in a NavigationStack using .navigationTitle. - True
* If you have a NavigationLink that goes to another View with a NavigationLink, you need to declare a NavigationStack at each level. - False This question belongs to View Building with SwiftUI , specifically the objective on creating a multi-view app with navigation stacks, links, and sheets . Statement 1 is False because NavigationLink is primarily a navigation control that pushes or presents a destination in a navigation container; Apple documents it as creating a navigation link that presents a destination, not as a general-purpose action control like Button.
Statement 2 is True because NavigationSplitView is designed for adaptive navigation and can present navigation in different ways depending on platform and available space. Apple documents NavigationSplitView as a container for navigation across multiple columns, and this adaptive behavior is exactly why it is used differently across device sizes.
Statement 3 is True because .navigationTitle(...) sets the navigation title for a view shown inside a navigation container. Apple explicitly describes a view's navigation title as something used to visually display the current navigation state of an interface.
Statement 4 is False because you do not need a separate NavigationStack at every level. Apple describes NavigationStack as the container that manages a stack of views, and NavigationLink pushes additional destinations onto that stack. Nested destinations can keep navigating within the same stack.

Question #5

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.