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

SectionWeightObjectives
Data Handling and Logic15%- Error handling
  • 1. Do-catch and optional handling
- Basic data processing
  • 1. Working with strings and numbers
Development Environment15%- Building and running apps
  • 1. Deploying to physical devices
  • 2. iOS Simulator usage
- Debugging techniques
  • 1. Logging and error resolution
  • 2. Breakpoints and step-through execution
- Xcode interface and tools
  • 1. Navigating project structure
  • 2. Using documentation and help resources
SwiftUI Basics25%- Views and controls
  • 1. Built-in UI components
  • 2. Modifiers and styling
- Layout and navigation
  • 1. Navigation patterns and presentation
  • 2. Stacks, grids and alignment
- State management
  • 1. Basic state properties
  • 2. Data flow between views
App Design and Best Practices15%- Code organization
  • 1. Readability and maintainability
- User experience principles
  • 1. Human Interface Guidelines
Swift Programming Fundamentals30%- Control flow
  • 1. Switch statements and pattern matching
  • 2. Conditional statements and loops
- Collection types
  • 1. Arrays, dictionaries and sets
- Functions
  • 1. Parameter customization and default values
  • 2. Definition, parameters and return values
- Basic types and operators
  • 1. Data types, type inference and casting
  • 2. Constants and variables
- Structures and classes
  • 1. Properties, methods and initializers

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Apple App Development with Swift Certified User Exam Sample Questions (Q18-Q23):

NEW QUESTION # 18
Which two statements about building an app are true? (Choose 2.)

Answer: C,D


NEW QUESTION # 19
Given the function, which two function calls are valid? (Choose 2.)

Answer: A,D

Explanation:
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 .


NEW QUESTION # 20
Refer to this image to complete the code.

Note: You will receive partial credit for each correct answer

Answer:

Explanation:

Explanation:

This question belongs to View Building with SwiftUI , especially the objectives for using List views to iterate through collections and structuring views with standard SwiftUI containers. The screenshot shows two grouped sets of rows: one headed MY FRIENDS and one headed MY PETS . In SwiftUI, the correct container for a scrollable table-style presentation of rows is List, and the correct way to divide that list into labeled groups is Section. Apple documents List as a container that presents data in a single-column row- based layout, and Section as a way to organize list content into grouped areas with headers and optional footers. That is exactly the structure shown in the image. ( developer.apple.com , developer.apple.com ) The ForEach(names, id: \.self) and ForEach(pets, id: \.self) lines are already iterating through the arrays, so each ForEach should be wrapped inside a Section. The section labels such as " My Friends " and " My Pets
" are provided with the header: label. So the intended code structure is:
List {
Section {
ForEach(names, id: \.self) { name in Text(name) }
} header: {
Text( " My Friends " )
}
Section {
ForEach(pets, id: \.self) { pet in Text(pet) }
} header: {
Text( " My Pets " )
}
}
This matches the UI shown in the image and aligns directly with SwiftUI list and section composition patterns in App Development with Swift.


NEW QUESTION # 21
You have created a view which includes some formatted text:

You decide to extract this formatted text into a subview so that you can reuse the formatting for other texts.
You highlight the Text and choose Extract subview.
You refactor ExtractedView to BigGreenTextView.
You add the line let text: String to the extracted view above the body.
You replace " That ' s all folks " with a reference to text
How should you call this extracted View from the original View?

Answer: A

Explanation:
This question belongs to View Building with SwiftUI , specifically the domain on extracting subviews to simplify the structure of an overlarge View .
When you create a custom SwiftUI view and add a stored property like:
let text: String
that property becomes part of the view's initializer. Since the property name is text, Swift expects you to pass the value using the parameter label text: when creating the view. So the correct call is:
BigGreenTextView(text: " That ' s all folks " )
That makes B the correct answer.
Why the others are wrong:
* A is incorrect because this is not using the expected parameter label.
* C would only be correct if there were already another variable named text in the calling scope and you wanted to pass that variable instead of the literal string shown in the question.
* D is incorrect because it omits the parameter label.
This is a standard SwiftUI pattern: extract reusable formatting into a separate custom View, give it an input property, and then pass the needed value through the initializer using the property label.


NEW QUESTION # 22
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 # 23
......

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