Đề Thi FE PRM393 - SP26 - B5 - FE

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SP2026

Thời Gian

9/5/26

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FE

PRM393 SP26 B5 FE

1. (Choose 1 answer)
Which widget pattern protects authenticated routes?
A. Navigator
B. Guard
C. Route protection
D. Middleware

2. (Choose 1 answer)
Why are tests important for refactoring?
A. Reduce UI work
B. Ensure changes don't break functionality
C. Improve animations
D. Change layout

3. (Choose 1 answer)
What is the role of BuildContext in Flutter?
A. Store application data
B. Locate widgets in the widget tree
C. Manage navigation history
D. Render UI pixels

4. (Choose 1 answer)
What role does the Flutter framework play in application development?
A. It manages database servers
B. It provides UI components and rendering logic
C. It replaces the operating system
D. It runs backend business logic

5. (Choose 1 answer)
How is the Flutter UI constructed internally?
A. Using XML layout files
B. Using HTML and CSS
C. Using a hierarchical widget tree
D. Using native UI components only

6. (Choose 1 answer)
Which widget enables custom scroll effects in Flutter?
A. ListView
B. SingleChildScrollView
C. CustomScrollView
D. Column

7. (Choose 1 answer)
Which practice improves rendering performance?
A. Large widget trees
B. Splitting widgets
C. Global state
D. Frequent rebuilds

8. (Choose 1 answer)
What does an integration test verify?
A. Single function
B. Widget rendering
C. End-to-end app behavior
D. Theme consistency

9. (Choose 1 answer)
Why is separating UI and state logic recommended?
A. Reduce code size
B. Improve maintainability
C. Faster execution
D. Better animations

10. (Choose 1 answer)
When does Flutter rebuild the widget tree?
A. On every frame
B. When state changes
C. Only when app restarts
D. Only during hot restart

11. (Choose 1 answer)
Which concept does BLoC heavily rely on?
A. Future
B. Stream
C. Animation
D. Theme

12. (Choose 1 answer)
Why is version control critical?
A. UI changes
B. Track and manage code changes
C. Improve animations
D. Store data

13. (Choose 1 answer)
Why is immutability important in BLoC states?
A. UI speed
B. Predictable state changes
C. Memory usage
D. Theme control

14. (Choose 1 answer)
Which Flutter plugin provides SQLite support?
A. hive
B. moor
C. sqflite
D. shared_preferences

15. (Choose 1 answer)
What is the main benefit of using Maps in Dart?
A. Storing values without keys
B. Storing key-value pairs
C. Rendering UI components
D. Managing asynchronous tasks

16. (Choose 1 answer)
Which tool helps analyze UI performance in Flutter?
A. Inspector
B. DevTools
C. Emulator
D. Hot reload

17. (Choose 1 answer)
What does a Dart class primarily represent?
A. A UI widget only
B. A blueprint for creating objects
C. A database table
D. A network request

18. (Choose 1 answer)
What is the purpose of SliverAppBar?
A. Static app bar
B. Scrollable flexible app bar
C. Bottom navigation
D. Drawer control

19. (Choose 1 answer)
What is Hive mainly used for?
A. Remote database
B. Lightweight local NoSQL storage
C. State management
D. Routing

20. (Choose 1 answer)
Which HTTP header is commonly used for authorization?
A. Content-Type
B. Accept
C. Authorization
D. Cache-Control

21. (Choose 1 answer)
What does TextEditingController manage?
A. Theme
B. Text input value
C. Validation rules
D. Layout constraints

22. (Choose 1 answer)
Why is Dart considered suitable for Flutter development?
A. It is only used for backend systems
B. It supports both UI and application logic efficiently
C. It replaces native languages
D. It does not support asynchronous programming

23. (Choose 1 answer)
What does the build() method return in a widget?
A. A screen
B. A widget tree describing the UI
C. Application state
D. Rendered pixels

24. (Choose 1 answer)
What represents the output of a BLoC?
A. Events
B. Widgets
C. States
D. Controllers

25. (Choose 1 answer)
What is Cubit in BLoC?
A. UI widget
B. Simplified BLoC without events
C. Database layer
D. Animation helper

26. (Choose 1 answer)
Which activity is typically performed after creating a new Flutter project?
A. Deploying to app stores
B. Running the default app on a device
C. Configuring authentication
D. Optimizing database queries

27. (Choose 1 answer)
Which practice improves deployment security?
A. Debug builds
B. Secure signing keys
C. Hardcoding secrets
D. Skipping validation

28. (Choose 1 answer)
Why is Chapter 14 considered optional (Plus)?
A. Deployment is UI logic
B. Apps can be tested without publishing
C. It replaces authentication
D. It handles APIs

29. (Choose 1 answer)
What is the primary purpose of ThemeData in Flutter?
A. Manage navigation
B. Define application-wide visual styles
C. Handle state changes
D. Control animations

30. (Choose 1 answer)
Which method is used to update the UI when state changes?
A. build()
B. setState()
C. initState()
D. dispose()

31. (Choose 1 answer)
Which Flutter package is commonly used for simple key-value storage?
A. sqflite
B. shared_preferences
C. provider
D. http

32. (Choose 1 answer)
Why should architecture be decided early?
A. Avoid UI work
B. Reduce refactoring cost
C. Improve animations
D. Change theme

33. (Choose 1 answer)
What is pagination used for?
A. UI animation
B. Handling large datasets efficiently
C. Theme management
D. Authentication

34. (Choose 1 answer)
Which widget helps avoid rebuilding unchanged UI parts?
A. Container
B. RepaintBoundary
C. Column
D. FutureBuilder

35. (Choose 1 answer)
Which widget is used to handle asynchronous API responses in UI?
A. FutureBuilder
B. ListView
C. Provider
D. Form

36. (Choose 1 answer)
Which Dart feature helps organize code into reusable libraries?
A. Widgets
B. Packages and imports
C. Hot reload
D. Layout constraints

37. (Choose 1 answer)
What is refresh token used for?
A. UI refresh
B. Extend session without re-login
C. Theme update
D. Navigation reset

38. (Choose 1 answer)
What is rebuild scope optimization in Flutter?
A. Reducing widget tree depth
B. Limiting rebuild to affected widgets
C. Caching API responses
D. Using global state

39. (Choose 1 answer)
Why is BLoC suitable for large teams?
A. Less code
B. Standardized architecture
C. Faster builds
D. UI reuse

40. (Choose 1 answer)
Which widget reacts to async data from local storage?
A. FutureBuilder
B. StreamBuilder
C. ListView
D. Provider

41. (Choose 1 answer)
What is a token in authentication systems?
A. UI key
B. Temporary access credential
C. Database ID
D. Theme value

42. (Choose 1 answer)
What does a Tween define?
A. Animation speed
B. Value range for animation
C. UI layout
D. State logic

43. (Choose 1 answer)
Which Dart feature allows defining reusable, type-safe components?
A. Mixins
B. Generics
C. Futures
D. Streams

44. (Choose 1 answer)
Which widget animates between two widgets?
A. AnimatedSwitcher
B. AnimatedOpacity
C. AnimatedAlign
D. AnimatedSize

45. (Choose 1 answer)
Why should setState() be called sparingly?
A. It increases app size
B. It may trigger unnecessary rebuilds
C. It blocks UI thread
D. It causes memory leaks

46. (Choose 1 answer)
What is test isolation?
A. Running all tests together
B. Independence of test cases
C. UI separation
D. Mocking only

47. (Choose 1 answer)
What does crossAxisAlignment control?
A. Vertical alignment in Column
B. Horizontal alignment in Column
C. Child order
D. Widget size

48. (Choose 1 answer)
Which tool is commonly used for version control?
A. SVN
B. Git
C. FTP
D. ZIP