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

SectionObjectives
Swift Programming Language- 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
- Manage data using collection types
  • 1. Dictionaries
  • 2. Arrays
- Evaluate variable scope and shadowing
- Know how and when to apply control flow and loops
  • 1. Use logical operators
  • 2. Use Guard
  • 3. Use range operators
- Demonstrate proper use of structs, classes
  • 1. Define and use property observers
  • 2. Differentiate between various initializers
  • 3. Define and use properties and methods
  • 4. Differentiate between structures and classes
- Use functions
  • 1. Create and call a function
  • 2. Customize internal, external, and anonymous naming of parameters in functions
  • 3. Demonstrate how to use a function's return value
  • 4. Organize and structure code
  • 5. Implement default parameter values
- Declare and use basic Swift types
  • 1. Interpret and use basic types
  • 2. Describe and use data types and operators
  • 3. Demonstrate when to use constants and variables
  • 4. Demonstrate the use of type casting in both safe and unsafe ways
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 multiple Views to implement app logic
- Extract Subviews to simplify the structure of an overlarge View
- Use List Views to iterate through collections
- Create a multi-view app with navigation Stacks, Links, and/or Sheets
Xcode Developer Tools- Demonstrate how to build and run an app
  • 1. on the iOS device
  • 2. on the iOS simulator
- Identify and use the features of the Xcode interface
  • 1. Navigate Xcode
  • 2. Create and modify views with Interface Builder
  • 3. Demonstrate how to access documentation and help
- 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 App-Development-with-Swift-Certified-User Prüfungsfragen mit Lösungen (Q28-Q33):

28. Frage
Select the location to set this app to run on an iPhone 14 in the simulator.

Antwort:

Begründung:

Explanation:

This question belongs to Xcode Developer Tools , specifically the domain for building and running an app on the iOS simulator . In Xcode, the place where you choose whether the app runs on a simulator or a connected device is the run destination / scheme destination selector in the toolbar. This control appears near the top center of the Xcode window and displays the current destination, such as a simulator model or device target. To run the app on iPhone 14 , you click that selector and choose iPhone 14 from the available simulator list. Apple's Xcode documentation describes choosing a run destination before building and running the app in Simulator or on a device.
So, for the hotspot, the correct place is the device/simulator dropdown in the top toolbar , not the preview canvas controls, not the project navigator, and not the code editor. That selector determines where the app launches when you press Run.


29. Frage
Review the code.

You need to add the word " Great! " to the Capsule shape.
Complete the code by typing in the boxes.

Antwort:

Begründung:
overlay, Text
Explanation:
This question belongs to View Building with SwiftUI , particularly the domain involving positioning and/or laying out a single SwiftUI view with standard views and modifiers . To place text on top of a shape such as a Capsule, SwiftUI uses the overlay modifier. Apple documents overlay as a view modifier that layers one view in front of another, which is exactly what is needed here: the text should appear on top of the blue capsule rather than beside or below it. The second blank must therefore be Text , because SwiftUI uses a Text view to display string content like " Great! " .
The completed code is:
struct ContentView: View {
var body: some View {
Capsule()
.fill(.blue)
.frame(width: 200.0, height: 100.0)
.overlay(
Text( " Great! " )
.font(.largeTitle)
)
}
}
This works because Capsule() creates the shape, .fill(.blue) gives it the blue color, .frame(width:height:) sets its size, and .overlay(...) places the Text( " Great! " ) directly above that shape. This is a standard SwiftUI composition pattern: build a base view, then apply modifiers to style it and layer additional content. In App Development with Swift objectives, this aligns with understanding standard views, modifiers, and layout techniques in SwiftUI.


30. Frage
Review the code snippet.

What value does the code output?

Antwort:

Begründung:
Answer the question by typing in the box.
2
Explanation:
This question belongs to Swift Programming Language , specifically the objectives covering functions , control flow , and default parameter values . The function is declared as func getAgeCategory(_ age: Int =
20) - > Int, which means if no argument is supplied, Swift uses the default value 20. Apple's Swift documentation explains that you can define a default value for any parameter, and that value is used when the caller omits that argument. Since the code calls getAgeCategory() with no parameter, the function executes using age = 20.
The conditional logic is then evaluated in order:
* if age > 64 # false, because 20 is not greater than 64
* else if age > 19 # true, because 20 is greater than 19
* so the function returns 2
Because Swift's if / else if control flow stops at the first true condition, the later checks are never reached once age > 19 succeeds. Apple describes Swift as supporting standard control flow including conditional branching, and this example is a direct use of that branching behavior.
Therefore, print(getAgeCategory()) outputs 2 , which corresponds to option B .


31. Frage
Review the code snippet.

What is the value of answer after you run the code?

Antwort:

Begründung:
4
Explanation:
This question belongs to Swift Programming Language , specifically the domains covering control flow , loops , and range operators .
The code starts with:
var count = 0
var answer = 0
So both variables begin with the value 0.
In the first loop:
for index in 1...5 {
count = index
}
the closed range 1...5 includes 1, 2, 3, 4, and 5 . During each iteration, count is updated to the current value of index. After the loop finishes, the final value assigned to count is 5 .
Then the second loop runs:
for index in 1.. < count {
answer = index
}
Here, the half-open range 1.. < count means values starting at 1 up to, but not including , count. Since count is 5, this loop runs with index equal to 1, 2, 3, and 4 . Each time through the loop, answer is updated to the current index. After the last iteration, answer becomes 4 .
So the final value of answer is 4 . This question tests understanding of the difference between the closed range operator ... and the half-open range operator .. < , which is a key Swift control-flow concept.


32. Frage
Given the function, which two function calls are valid? (Choose 2.)

Antwort: A,B

Begründung:
This question belongs to Swift Programming Language , specifically the domain on functions , including internal and external parameter names and default parameter values .
The function is defined as:
func rightSum(_ num1: Int, by num2: Int, and num3: Int = 25) - > Int {
return num1 + num2 + num3
}
This means:
* the first parameter uses _, so it has no external label
* the second parameter must use the external label by
* the third parameter must use the external label and
* the third parameter also has a default value of 25, so it may be omitted Now evaluate each option:
* A is invalid because it uses num2: instead of the required external label by:
* B is valid because it correctly uses no label for the first argument, then by: and and:
* C is invalid because the first parameter cannot be called with num1: since the external label is omitted with _
* D is valid because it correctly passes the first argument unlabeled and the second with by:, while omitting the third argument so Swift uses the default value 25
* E is invalid because it uses num1: and num2: instead of the required calling syntax So the two correct function calls are B and D .


33. Frage
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