40+ most important Flutter mcq questions and answers

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Flutter mcq questions and answers

Flutter mcq questions and answers with more than 40 Flutter multiple choice questions. These are the most important flutter mcqs that can help you crack Flutter mcq tests and flutter interviews. We are planning to add Flutter mcq pdf download link for both mcq questions and flutter interview questions.

Flutter mcq questions and answers

Q.1 What is Flutter?
A : Flutter is an open-source DBMS
B : Flutter is an open-source UI toolkit
C : Flutter is an open-source backend toolkit
D : All of the above

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Flutter is an open-source UI toolkit

Q.2 The first alpha version of Flutter was released in ________.
A : May 2017
B : May 2018
C : May 2016
D : May 2019

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May 2017

Q.3 Flutter is developed by ________.
A : Microsoft
B : Facebook
C : Google
D : IBM

Google

Q.4 Is Flutter a programming language?
A : Yes
B : No
C : May be
D : Can’t say

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No

Q.5 Flutter is mainly optimized for _________ that can run on both Android and iOS platforms.
A : 2D mobile apps
B : Desktop only
C : Tablet only
D : None of the above

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2D mobile apps

Q.6 Is Flutter a SDK?
A : Yes
B : No
C : May be
D : Can’t say

Yes

Q.7 SDK stands for _________.
A : Software Development Knowledge
B : Software Data Kit
C : Software Development Kit
D : Software Database Kit

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Software Development Kit

Q.8 What is Dart?
A : Dart is a object-oriented programming language.
B : Dart is used to create a frontend user interfaces.
C : Both A and B
D : None of the above

Both A and B

Q.9 What are the best editors for Flutter development?
A : Android Studio
B : IntelliJ IDEA
C : Visual Studio
D : All of the above

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All of the above

Q.10 The Dart language can be compiled __________.
A : AOT
B : JIT
C : Both AOT and JIT
D : None of the above

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Both AOT and JIT

Flutter multiple choice questions and answers

Q.11 What are the advantages of Flutter?
A : Cross-platform Development
B : Faster Development
C : UI Focused
D : All of the above

All of the above

Q.12 Without the main() function, we cannot write any program on Flutter.
A : True
B : False

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True

Q.13 A _______ is a sequence of asynchronous events.
A : Flow
B : Current
C : Stream
D : All of the above

Stream

Q.14 The ________ operator is used to evaluate and returns the value between two expressions.
A : ?
B : &
C : ??
D : &&

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??

Q.15 _______ in Flutter are used as an identifier for Widgets, Elements and SemanticsNodes.
A : Buttons
B : Keys
C : Widgets
D : None of the above

Keys

Q.16 How many types of widgets are there in Flutter?
A : 2
B : 3
C : 4
D : 5

2

Q.17 What types of tests can you perform in Flutter?
A : Unit Tests
B : Widget Tests
C : Integration Tests
D : All of the above

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All of the above

Q.18 _________ command is used to compile the release mode.
A : flutter run –release
B : flutter –release
C : flutter run ??release
D : flutter run %%release

flutter run –release

Q.19 The subclasses of Key must be a ___________.
A : GlobalKey only
B : LocalKey only
C : GlobalKey or LocalKey
D : None of the above

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GlobalKey or LocalKey

Q.20 _________ in Flutter is a refresh rate of our animation.
A : Show
B : Ticker
C : Refresh
D : None of the above

Ticker

Flutter interview questions

Q.21 What are the different build modes in Flutter?
A : Debug
B : Profile
C : Release
D : All of the above

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All of the above

Q.22 The ________ widget in Flutter is a box that comes with a specified size.
A : Container
B : Stream
C : Show
D : SizedBox

SizedBox

Q.23 The function is responsible for returning the widgets that are attached to the screen as a root of the widget tree and will be rendered on the screen.
A : Container
B : runApp()
C : main()
D : SizedBox

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runApp()

Q.24 The ________ animation allows you to represent real-world behavior in Flutter.
A : Maths-based
B : Graph-based
C : Physics-based
D : None of the above

Physics-based

Q.25 ________ will enable you to access and manipulate the cloud database.
A : Sqflite database
B : Firebase database
C : Both A and B
D : None of the above

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Firebase database

Q.26 __________ are some popular apps that use Flutter.
A : Google Ads
B : Birch Finance
C : Alibaba
D : All of the above

All of the above

Q.27 __________ is used when you create the Flutter application for Android.
A : iOS folder
B : Android folder
C : Google folder
D : Text folder

Android folder

Q.28 ________ is the project’s configuration file that will use a lot during working with the Flutter project.
A : pubspec.html
B : pubspec.yaml
C : pubspec.xyz
D : pubspec.xml

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pubspec.yaml

Q.29 When you build the Flutter app the first time, it will take a longer time.
A : True
B : False

True

Q.30 Disadvantages of Flutter are _________.
A : The Flutter apps do not support the browser.
B : It only supports Android and iOS platforms.
C : It needs continuous integration support through the maintenance of scripts.
D : All of the above

All of the above

Q.31. Which of the following used to develop the native hybrid app from a single codebase?
A : React Native
B : Flutter
C : Both A and B
D : Keras

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Both A and B

Q.32. Which of the following works with a small r key on the terminal or commands prompt?
A : Hot Restart
B : Hot Reload
C : Cold Reload
D : Cold Restart

Hot Reload

Q.33. Which of the following takes more time to compile and update the app?
A : Hot Reload
B : Hot Restart
C : Cold Reload
D : Depends on Compiler

Hot Restart

Q.34. Which function is responsible for starting the program?
A : runApp()
B : run()
C : flutter()
D : main()

main()

Q.35. Streams can be of __________ types.
A : 0
B : 1
C : 2
D : 3

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2

Q.36. The Flutter tooling supports _____ modes while compiling the application
A : 2
B : 3
C : 4
D : 5

3

Q.37. Release mode allows us to optimize the codes and generate them without any debug data in a fully optimized form
A : TRUE
B : FALSE
C : Can be true or false
D : Can not say

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TRUE

Q.38. Which of the following tests a single widget?
A : Integration Tests
B : Unit Tests
C : Interactive Tests
D : Widget Tests

Widget Tests

Q.39. WidgetsApp is used for basic navigation
A : Yes
B : No
C : Can be yes or no
D : Can not say

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Yes

Q.40. pubspec.yaml file does not contain?
A : Project general settings
B : Project dependencies
C : Project language
D : Project assets

Project language

Q.41. A widget that allows us to refresh the screen is called a ______
A : Stateless widgets
B : Stateful widget
C : Statebuild widget
D : All of the above

Stateful widget

Q.42. The examples of the Stateless widget are?
A : Text
B : Row
C : Column
D : All of the above

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All of the above

Q.43. Which of the following is true regarding Flutter?
A : Flutter is a UI toolkit for creating fast, beautiful, natively compiled mobile applications
B : Flutter use one programming language and a single codebase
C : Flutter is free and open-source.
D : All of the above

All of the above

Q.44. Flutter is mainly optimized for 2D mobile apps that can run on?
A : Android
B : iOS
C : Both A and B
D : None of the above

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Both A and B

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