Flutter MCQ Questions and Answers

Q. What programming language is Flutter primarily written in?

A. Java
B. Dart
C. Kotlin
D. Swift
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Q. What is a Widget in Flutter?

A. A database connection
B. A network request
C. Everything in Flutter is a widget
D. A design pattern
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Q. What is the primary difference between StatelessWidget and StatefulWidget?

A. Performance
B. Ability to change state
C. Rendering speed
D. Memory usage
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Q. What is the purpose of the build method in Flutter?

A. Database construction
B. Network configuration
C. Creating and returning widget trees
D. Managing app lifecycle
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Q. What does setState() do in Flutter?

A. Reset the application
B. Create a new state
C. Trigger a rebuild of the widget
D. Stop the application
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Q. What is a Navigator in Flutter?

A. A database manager
B. A widget for routing and navigation
C. A performance optimization tool
D. A state management solution
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Q. What is the purpose of the pubspec.yaml file?

A. Define UI layout
B. Configure database connections
C. Manage project dependencies and metadata
D. Create network configurations
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Q. What is a key in Flutter?

A. A cryptographic security element
B. A unique identifier for widgets
C. A database primary key
D. A navigation parameter
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Q. What is hot reload in Flutter?

A. A performance optimization
B. A database refresh mechanism
C. Quickly update code without restarting the app
D. A security feature
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Q. What does the async keyword indicate in Dart?

A. A synchronous function
B. A function that can run asynchronously
C. A database connection
D. A network protocol
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Q. What is a stream in Flutter?

A. A video playback feature
B. A continuous flow of asynchronous data
C. A network connection type
D. A user interface component
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Q. What is the purpose of the MediaQuery widget?

A. Play media files
B. Configure network media
C. Provide information about screen size and orientation
D. Create media filters
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Q. What is a gesture detector in Flutter?

A. A security mechanism
B. A network monitoring tool
C. A widget that detects user interactions
D. A performance analyzer
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Q. What is a Future in Dart?

A. A scheduling mechanism
B. A database query
C. A representation of an asynchronous operation
D. A network protocol
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Q. What is the purpose of the const constructor in Flutter?

A. Create constant variables
B. Improve performance by creating compile-time constants
C. Encrypt data
D. Create immutable objects
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Q. What is the purpose of the InheritedWidget in Flutter?

A. Create inheritance between classes
B. Efficiently pass data down the widget tree
C. Manage database connections
D. Handle network requests
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Q. What is the difference between Column and Row widgets?

A. No difference
B. Column arranges children vertically, Row horizontally
C. Column is for images, Row for text
D. Column manages state, Row manages layout
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Q. What is the purpose of the Scaffold widget?

A. Create database scaffolding
B. Implement basic material design visual layout structure
C. Generate network connections
D. Manage application state
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Q. What is Provider in Flutter?

A. A network provider
B. A state management solution
C. A UI design pattern
D. A database connection method
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Q. What does the dispose() method do in a StatefulWidget?

A. Delete the widget
B. Reset widget state
C. Clean up resources and cancel subscriptions
D. Stop widget rendering
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Q. What is the purpose of the AnimatedContainer widget?

A. Create complex animations
B. Manage application state
C. Automatically animate property changes
D. Handle network animations
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Q. What is the purpose of the SizedBox widget?

A. Create database boxes
B. Manage network connections
C. Add specific width, height, or create empty space
D. Handle UI state
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Q. What is the main purpose of the BuildContext?

A. Build network connections
B. Manage application lifecycle
C. Locate widgets in the widget tree
D. Create UI layouts
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Q. What is the purpose of the LayoutBuilder widget?

A. Create complex layouts
B. Manage network layouts
C. Build widgets based on parent widget constraints
D. Handle database connections
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Q. What is a Cupertino widget in Flutter?

A. A database widget
B. A network management widget
C. iOS-style design widgets
D. A performance optimization widget
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Q. What is the purpose of the FutureBuilder widget?

A. Manage future database connections
B. Create network requests
C. Build widgets based on the latest snapshot of a Future
D. Handle application state
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Q. What is a CustomPainter in Flutter?

A. A network painting tool
B. A database visualization widget
C. A custom drawing mechanism for complex graphics
D. A UI state management tool
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Q. What is the purpose of the Expanded widget?

A. Expand database connections
B. Create network expansions
C. Fill available space in flex layouts
D. Manage application state
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Q. What does the rootBundle property do in Flutter?

A. Manage root database connections
B. Handle network root configurations
C. Load assets bundled with the application
D. Create root UI layouts
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Q. What is a RepaintBoundary in Flutter?

A. A network boundary mechanism
B. A database isolation tool
C. Optimize rendering by isolating widget repainting
D. Manage application state
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