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Apple App-Development-with-Swift-Certified-User Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Xcode Developer Tools | - Identify and use the features of the Xcode interface
|
| Swift Programming Language | - Know how and when to apply control flow and loops
|
| View Building with SwiftUI | - Use @State, @Binding, @Environment, and/or Observable to share data between Views - Extract Subviews to simplify the structure of an overlarge View - Position and/or layout a single SwiftUI View with standard Views and modifiers - Create multiple Views to implement app logic - Create a multi-view app with navigation Stacks, Links, and/or Sheets - Use List Views to iterate through collections |
Apple App Development with Swift Certified User Sample Questions:
Which two assignments of a value to direction are allowed? (Choose 2.)
- A. direction = CompassPoint(north)
- B. direction = north
- C. direction = .north
- D. direction = CompassPoint.north
- E. direction = direction.north
Explanation: Only visible for TestsDumps members. You can sign-up / login (it's free).
Given the function definition, which two statements call the function correctly? (Choose 2.)
Based on the image provided, here is the text for each of the multiple-choice options:
- A. schedule(who: " Jane Doe " , from: " 9:30am " , to: " 10:30am " , place: " Office " )
- B. schedule(who name: " Jane Doe " , from starting: " 9:30am " , to ending: " 10:30am " )
- C. D. schedule(name: " Jane Doe " , starting: " 9:30am " , ending: " 10:30am " , place: " Office " )
- D. schedule(who: " Jane Doe " , from: " 9:30am " , to: " 10:30am " , " Office " )
- E. E. schedule(who: " Jane Doe " , from: " 9:30am " , to: " 10:30am " )
Explanation: Only visible for TestsDumps members. You can sign-up / login (it's free).
Review the code.
Note: You might need to scroll to see the entire block of code.
A breakpoint is set on line 3. When the application is run. it will stop at line 3. You need to debug the code.
Drag each debugging control from the left to the correct instruction on the right. You will receive partial credit for each correct answer
Explanation:
This question belongs to Xcode Developer Tools , especially the objective on using debugging techniques including breakpoints and stepping controls .
When execution stops at a breakpoint on line 3, Step Over runs that line without entering into another function call, so it is the correct action for moving past line 3 while staying in the current function. Step Into is used when execution reaches line 4 and you want to enter the display(numbers) function, which takes you into the function body starting at line 8. Once inside that function, Step Out continues execution until the current function returns, which is exactly what "step out from line 8" means.
Deactivate breakpoints turns breakpoint handling off so the debugger no longer stops on active breakpoints.
Continue program execution resumes the app until the next breakpoint or until the program finishes.
So the correct control order is:
1 = Continue
2 = Deactivate breakpoints
3 = Step Over
4 = Step Into
5 = Step Out
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.
- A. nextApplePhone.releaseDate : lastReleaseDate
- B. lastReleaseDate : nextApplePhone.releaseDate
- C. lastReleaseDate : nextApplcPhone.rcleaseDate!
- D. nextApplePhone.releaseDate! : lastReleaseDate
Explanation: Only visible for TestsDumps members. You can sign-up / login (it's free).
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?
- A. BigGreenTextView(text)
- B. BigGreenTextView(text: text)
- C. BigGreenTextView( " That ' s all folks " )
- D. BigGreenTextView(text: " That ' s all folks " )
Explanation: Only visible for TestsDumps members. You can sign-up / login (it's free).
Janet 
Sid 
Dora 
Fitch 
Lucien 
Setlla 
Maurice 
Cornelius 
Sheila 
Chester 
Magee 
Hunter 
Kirk 
Ulysses 
Levi 
Judith 
Guy 
Nina 
Yehudi 
Moira 
Bonnie 
