Dart Interview Mcq Question
Multiple Choice Questions (MCQs) for Dart Interviews
Dart Interview Mcq Question
Dart interview MCQ questions play a crucial role in the assessment of a candidate's knowledge and proficiency in the Dart programming language. By testing candidates on their understanding of fundamental concepts, syntax, and best practices, these questions help interviewers gauge the candidate's ability to handle real-world development challenges. These questions also demonstrate the candidate's familiarity with the latest Dart features and industry trends, making them valuable indicators of their technical capability and suitability for the role.
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1 - Which of the following is not a valid keyword in Dart?
a) final b) var c) continue d) import
Answer: c
2) What is the output of the following code?
int a = 5;
a ?? 10;
print(a);
Answer: 5
3) Which of the following is a data type in Dart?
a) int b) bool c) String d) All of the above
Answer: d
4) What is the purpose of the async keyword in Dart?
a) To indicate that a function is asynchronous
b) To indicate that a function returns a Future
c) To indicate that a function takes an asynchronous argument
d) None of the above
Answer: a
5) What is the difference between a const and a final variable in Dart?
a) Const variables cannot be reassigned, while final variables can be reassigned
b) Const variables must be initialized at declaration, while final variables can be initialized later
c) Const variables are compile time constants, while final variables are runtime constants
d) There is no difference between const and final variables
Answer: c
6) What is the output of the following code?
List<String> list = ['a', ‘b’, ‘c’];
list.forEach((element) {
element = ‘d’;
});
print(list);
Answer: ['a', ‘b’, ‘c’]
7) What is the purpose of the spread operator (…) in Dart?
a) To spread the elements of an iterable into a new list
b) To spread the elements of an iterable into a new map
c) To spread the elements of an iterable into a new set
d) None of the above
Answer: a
8) What is the difference between a class and an interface in Dart?
a) A class can have a constructor, while an interface cannot
b) An interface can inherit from multiple classes, while a class cannot
c) A class can implement multiple interfaces, while an interface cannot
d) There is no difference between a class and an interface
Answer: a
9) What is the purpose of the super keyword in Dart?
a) To call the superclass's constructor
b) To call the superclass's method
c) To access the superclass's field
d) None of the above
Answer: a
10) What is the purpose of the override keyword in Dart?
a) To indicate that a method overrides a method in the superclass
b) To indicate that a method is final and cannot be overridden
c) To indicate that a method is static and cannot be overridden
d) None of the above
Answer: a
11 - What is the purpose of the factory keyword in Dart?
a) To create a new instance of a class
b) To create a new subclass of a class
c) To create a new interface for a class
d) None of the above
Answer: a
12) What is the purpose of the abstract keyword in Dart?
a) To indicate that a class cannot be instantiated
b) To indicate that a method has no implementation
c) To indicate that a property has no getter or setter
d) None of the above
Answer: b
13) What is the purpose of the const keyword in Dart?
a) To indicate that a variable is a compile time constant
b) To indicate that a variable is a runtime constant
c) To indicate that a variable cannot be reassigned
d) None of the above
Answer: a
14) What is the purpose of the final keyword in Dart?
a) To indicate that a variable cannot be reassigned
b) To indicate that a variable is a compile time constant
c) To indicate that a variable is a runtime constant
d) None of the above
Answer: a
15) What is the purpose of the late keyword in Dart?
a) To indicate that a variable is initialized later
b) To indicate that a variable is optional
c) To indicate that a variable is final
d) None of the above
Answer: a
16) What is the purpose of the void keyword in Dart?
a) To indicate that a function does not return a value
b) To indicate that a function takes no arguments
c) To indicate that a function is asynchronous
d) None of the above
Answer: a
17) What is the purpose of the dynamic keyword in Dart?
a) To indicate that a variable can hold any type of value
b) To indicate that a function can return any type of value
c) To indicate that a parameter can be of any type
d) None of the above
Answer: a
18) What is the purpose of the nullable keyword in Dart?
a) To indicate that a variable can be null
b) To indicate that a function can return null
c) To indicate that a parameter can be null
d) None of the above
Answer: a
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- Course Overview
- ‘Dart Interview MCQ Question’ course provides multiple-choice questions (MCQs) to prepare for interviews and assess proficiency in Dart programming. It covers fundamental concepts, syntax, data structures, object-oriented programming, async programming, and best practices. The course aims to enhance understanding of Dart and prepare candidates for technical interview questions related to the language.
- Course Description
- This course covers fundamental concepts and frequently encountered MCQ questions in Dart interviews. It provides a comprehensive overview of Dart programming, including data types, variables, control flow, functions, classes, and object-oriented programming. By practicing these questions, candidates can enhance their understanding of Dart and prepare effectively for technical interviews in the industry.
- Key Features
- 1 - Comprehensive Tool Coverage: Provides hands-on training with a range of industry-standard testing tools, including Selenium, JIRA, LoadRunner, and TestRail.
- 2) Practical Exercises: Features real-world exercises and case studies to apply tools in various testing scenarios.
- 3) Interactive Learning: Includes interactive sessions with industry experts for personalized feedback and guidance.
- 4) Detailed Tutorials: Offers extensive tutorials and documentation on tool functionalities and best practices.
- 5) Advanced Techniques: Covers both fundamental and advanced techniques for using testing tools effectively.
- 6) Data Visualization: Integrates tools for visualizing test metrics and results, enhancing data interpretation and decision-making.
- 7) Tool Integration: Teaches how to integrate testing tools into the software development lifecycle for streamlined workflows.
- 8) Project-Based Learning: Focuses on project-based learning to build practical skills and create a portfolio of completed tasks.
- 9) Career Support: Provides resources and support for applying learned skills to real-world job scenarios, including resume building and interview preparation.
- 10) Up-to-Date Content: Ensures that course materials reflect the latest industry standards and tool updates.
Benefits of taking our course
Functional Tools
1 - DartPad: An online IDE for quickly prototyping and testing Dart code, accessible through a web browser.
2) DartAnalyzer: A command line tool that checks Dart code for errors, warnings, and style issues, providing real time feedback and auto completion.
3) Flutter Doctor: A utility for checking the Flutter SDK setup, dependencies, and device compatibility, ensuring a smooth development environment.
4) Pub Dev: A package manager for Dart and Flutter, allowing developers to easily discover, install, and update packages, extending the functionality of their applications.
5) DevTools: A Chrome DevTools extension for debugging and profiling Flutter applications, providing detailed insights into performance, memory usage, and network requests.
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