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

SectionObjectives
View Building with SwiftUI- Create multiple Views to implement app logic
- Use @State, @Binding, @Environment, and/or Observable to share data between Views
- Extract Subviews to simplify the structure of an overlarge View
- Create a multi-view app with navigation Stacks, Links, and/or Sheets
- Use List Views to iterate through collections
- Position and/or layout a single SwiftUI View with standard Views and modifiers
Swift Programming Language- Know how and when to apply control flow and loops
  • 1. Use logical operators
  • 2. Use Guard
  • 3. Use range operators
- Use functions
  • 1. Demonstrate how to use a function's return value
  • 2. Create and call a function
  • 3. Organize and structure code
  • 4. Customize internal, external, and anonymous naming of parameters in functions
  • 5. Implement default parameter values
- Declare and use basic Swift types
  • 1. Describe and use data types and operators
  • 2. Interpret and use basic types
  • 3. Demonstrate the use of type casting in both safe and unsafe ways
  • 4. Demonstrate when to use constants and variables
- Manage data using collection types
  • 1. Arrays
  • 2. Dictionaries
- Demonstrate proper use of structs, classes
  • 1. Define and use property observers
  • 2. Define and use properties and methods
  • 3. Differentiate between various initializers
  • 4. Differentiate between structures and classes
- Demonstrate the use of Optional types
  • 1. Demonstrate how to unwrap Optionals safely
  • 2. Apply Optional binding and Optional chaining (including but not limited to if let, guard let)
- Evaluate variable scope and shadowing
Xcode Developer Tools- Demonstrate how to build and run an app
  • 1. on the iOS simulator
  • 2. on the iOS device
- Identify and use the features of the Xcode interface
  • 1. Create and modify views with Interface Builder
  • 2. Demonstrate how to access documentation and help
  • 3. Navigate Xcode
- 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

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Apple App Development with Swift Certified User Exam Sample Questions (Q10-Q15):

NEW QUESTION # 10
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.

Answer:

Explanation:

Explanation:
* age - Variable
* birthDate - Constant
* socialSecurityNumber - Constant
* salary - Variable
* currentDepartment - Variable
This question belongs to Swift Programming Language , specifically the objective on demonstrating when to use constants and variables . In Swift, a constant is declared with let and is used for values that should not change after they are set. A variable is declared with var and is used for values that may change over time.
Birth date is a constant because a person's date of birth does not change. Social security number is also a constant because it is intended to be a fixed identifier for that employee record. By contrast, age is a variable because it changes over time. Salary is a variable because compensation can be adjusted. Current department is also a variable because an employee may transfer to another department.
This matches Swift best practice: use let for fixed data and var for mutable data. So in a human resources record, identifiers that are permanent should be constants, while values that can change during employment should be variables.


NEW QUESTION # 11
Match the Swift Properly Wrapper names to the correct descriptions.

Answer:

Explanation:

Explanation:
* @AppStorage # This property wrapper reads and writes values from UserDefaults.
* @Environment # This property wrapper allows you to access data from the system, such as knowing the size class of the device, or dismissing a view.
* @Binding # When a variable is declared with this property wrapper, changes to its value will be returned to the calling view.
* @State # When a variable is declared with this property wrapper, it is used to store small amounts of data local to the view whose value may affect the appearance of the view.
This question belongs to View Building with SwiftUI , specifically the objective about using @State,
@Binding, @Environment, and related wrappers to share and manage data between views. @AppStorage is the wrapper that connects a SwiftUI value to UserDefaults, so it is the correct match for reading and writing persisted user defaults data. Apple documents AppStorage as a property wrapper type that reflects a value from UserDefaults and updates the view when that value changes.
@Environment is used to read values supplied by the system or ancestor views, including interface context like size classes and actions such as dismissing a presented view. Apple's environment documentation explains that SwiftUI automatically sets and updates many environment values for layout and behavior, and App Dev Training materials show environment values being used to dismiss a view.
@Binding represents a two-way connection to a value owned elsewhere, typically in a parent view, so changes made through the binding are reflected back in the source of truth. Apple's SwiftUI data-flow guidance describes bindings as the mechanism used when a child view needs shared control of state with another view.
@State is the correct wrapper for small, local, mutable view state. Apple describes State as the source of truth for data local to a view and recommends it for interface state that affects rendering.


NEW QUESTION # 12
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.

Answer:

Explanation:


NEW QUESTION # 13
If View A calls View B, which Swift Property Wrapper would you use in View B in order to return the value of a state to View A?

Answer: C

Explanation:
Comprehensive and Detailed Explanation From App Development with Swift domains:
This question belongs to View Building with SwiftUI , specifically the objective on using @State,
@Binding, @Environment, and observable data to share data between views.
The correct answer is @Binding because @Binding creates a two-way connection to a value that is owned by another view. In this scenario, View A owns the state, and View B needs to read and modify that value so the change is reflected back in View A. Apple's SwiftUI documentation describes a binding as a reference to a mutable value that is owned elsewhere, which is exactly the pattern used when a child view needs to update a parent view's state. ( developer.apple.com )
@State is not correct for View B here because @State is used for local state owned by that specific view. If View B used @State, it would manage its own separate copy rather than updating the parent's value.
@Environment is used to access values provided by the system or ancestor views, not for directly returning a specific parent state value in this pattern. @Observable is related to observable model objects and is not the direct property wrapper used in a child view for two-way parent-child state passing. ( developer.apple.com ) So when View A passes a state value into View B and expects updates to flow back, View B should use
@Binding .


NEW QUESTION # 14
You have a set of Views within a ZStack that produce the screen below:

Arrange the lines of code that will make up the ZSlack so that the View appears as shown.

Answer:

Explanation:

Explanation:

This question belongs to View Building with SwiftUI , specifically stacking views and applying modifiers. A ZStack layers views from back to front, so the first item becomes the background and later items appear on top. To match the screenshot, the black background must be the back layer, so Color.black goes first. The large white circle sits above that, so Circle() followed by .foregroundStyle(.white) comes next. Finally, the red heart image sits on top of the circle, so Image(systemName: " heart " ).resizable() followed by .
foregroundStyle(.red).frame(width: 200, height: 200) must be last. SwiftUI's Image.resizable() allows the symbol image to scale to the frame you apply, and foregroundStyle sets the visible color styling for the shape and symbol.
So the intended structure is:
ZStack {
Color.black
Circle()
.foregroundStyle(.white)
Image(systemName: " heart " ).resizable()
.foregroundStyle(.red)
.frame(width: 200, height: 200)
}
This produces a black background, a white circular shape, and a centered red heart on top, exactly as shown.


NEW QUESTION # 15
......

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