ASP.NET Core Developer Interview Questions & Answers [2023]

700+ ASP.NET Core Developer Interview Questions and Answers with In-Depth Explanation | Freshers to Experienced

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ASP.NET Core Developer Interview Questions and Answers – Updated [September 2023]

ASP.NET Core Developer Course: From Basics to Mastery

Welcome to the ultimate ASP.NET Core Developer course! Whether you’re a beginner just starting with ASP.NET Core or a seasoned developer looking to deepen your knowledge, this course is designed to provide a comprehensive and in-depth understanding of the powerful ASP.NET Core framework.

Course Overview:

• Introduction to ASP.NET Core: Dive into the world of ASP.NET Core, understanding its evolution, benefits, and why it stands out in the crowded landscape of web frameworks.
• Project Fundamentals: Get hands-on right from the start! Set up your development environment, create new projects, and explore the intricacies of project layouts and configurations.
• Building Blocks & MVC: Unravel the core components of ASP.NET Core, from middleware and exception handling to setting up MVC, understanding routing, and delving deep into action results and views.
• Mastering Razor Views: Razor is at the heart of creating dynamic web pages in ASP.NET Core. Learn about layouts, tag helpers, form handling, and more to craft interactive and user-friendly web pages.
• Data Handling with Entity Framework: Discover the power of Entity Framework Core, the premier ORM for .NET. Dive into DbContext, migrations, and integrate ASP.NET Core Identity for robust user management and authentication.
• Advanced Features: Embark on advanced topics such as Web APIs, SignalR, security best practices, and more to enhance the capabilities of your web applications.
• Testing & Deployment: Ensure your applications are robust and ready for the real world. Learn about unit testing, integration testing, and various deployment strategies to make your applications live.

Course Format (Quiz):
This course adopts an interactive quiz format, designed to engage learners actively. Instead of traditional long lectures or extensive readings, you’ll be challenged with a series of questions that test and reinforce your understanding of the ASP.NET Core framework. Each quiz segment is meticulously crafted to cover the breadth and depth of the topic, ensuring that you grasp both the theoretical knowledge and practical application.

Who Should Take This Course?

• Beginners: If you’re just stepping into the world of ASP.NET Core, these quizzes will help cement your foundational knowledge.
• Intermediate Developers: For those familiar with the basics but looking to delve deeper or fill in knowledge gaps, this course offers the perfect challenge.
• Experienced Professionals: If you’re prepping for a job interview or need a refresher, these quizzes are an efficient way to test your expertise and revisit core concepts.
• Instructors & Trainers: Gain a comprehensive set of questions to gauge your students’ understanding or to supplement your teaching material.

Why Should You Choose This Course?

• Engaging Format: The quiz-based approach keeps the learning process lively and interactive, enhancing retention.
• Comprehensive Coverage: Quizzes span from basic to advanced topics, ensuring a holistic understanding of ASP.NET Core.
• Instant Feedback: Receive immediate feedback on your answers, allowing you to identify areas that might need further study.
• Flexible Learning: Whether you have 5 minutes or an hour, you can take a quiz segment, making it easy to fit learning into your schedule.

We Update Questions Regularly:
To ensure that our content stays relevant and up-to-date with the latest developments in ASP.NET Core, we regularly update our question bank. As the framework evolves, so does our course, ensuring you’re always equipped with current knowledge.

Examples of the Types of Questions You’ll Encounter:

• Multiple Choice: Test your knowledge with options to choose from. Only one is right; can you spot it?
• True or False: Simple yet challenging. Gauge your foundational understanding with these binary questions.
• Scenario-based: Dive into real-world situations and challenges, pushing you to apply what you’ve learned in practical contexts.
• Code Snippets: Analyze and understand pieces of code, strengthening your ability to read and write ASP.NET Core applications.
• Conceptual Questions: Go beyond the code. These questions challenge your understanding of underlying principles and best practices in ASP.NET Core.

FAQ on ASP.NET Core:

1. What is ASP.NET Core?
   ASP.NET Core is a cross-platform, high-performance framework developed by Microsoft for building modern, cloud-based, and internet-connected applications.
2. How is ASP.NET Core different from ASP.NET?
   ASP.NET Core is a complete rewrite of ASP.NET, designed to be modular and cross-platform. It can run on Windows, Linux, and macOS, unlike the older ASP.NET which was Windows-only.
3. Is ASP.NET Core open-source?
   Yes, ASP.NET Core is open-source and its source code is available on GitHub.
4. Can I use ASP.NET Core with both .NET Core and .NET Framework?
   Originally, yes, but starting from ASP.NET Core 3.0 and onwards, it only runs on .NET Core.
5. What is the role of Entity Framework Core?
   Entity Framework Core (EF Core) is an Object-Relational Mapping (ORM) framework for ASP.NET Core. It allows developers to interact with databases using .NET objects.
6. What are Razor Pages in ASP.NET Core?
   Razor Pages is a new feature in ASP.NET Core that provides a simpler way to organize code and views, making it a more page-focused framework for web development.
7. How does ASP.NET Core handle dependency injection?
   ASP.NET Core has built-in support for dependency injection, allowing developers to add services to the DI container and then consume them in controllers, Razor Pages, or other services.
8. Is it necessary to use Visual Studio for ASP.NET Core development?
   No, while Visual Studio is a popular IDE for ASP.NET Core development, you can also use Visual Studio Code, JetBrains Rider, or any other editor or IDE that supports .NET Core development.
9. Does ASP.NET Core support real-time web functionalities?
   Yes, with ASP.NET Core SignalR, developers can add real-time web capabilities to their applications, enabling things like live chat, real-time notifications, and more.
10. How does ASP.NET Core ensure security in web applications?
    ASP.NET Core provides multiple built-in features for authentication and authorization, including OAuth, JWT, and ASP.NET Core Identity. It also offers tools for data protection, CORS, and more.

FAQ on the Course:

1. Who is the target audience for this course?
   This course is designed for beginners to experienced developers looking to deepen their knowledge of ASP.NET Core, as well as professionals preparing for job interviews.
2. Do I need prior knowledge of ASP.NET to take this course?
   No, the course starts with foundational concepts and progressively delves into advanced topics, making it suitable for both beginners and experienced developers.
3. How long is the course?
   The course duration varies based on the pace of the learner since it’s structured in an interactive quiz format. You can go through it at your own pace.
4. Are there any hands-on exercises or projects in the course?
   The course primarily adopts a quiz format, but several questions are scenario-based, designed to simulate real-world challenges and applications.
5. Will I get support if I have doubts or questions during the course?
   Yes, there’s a dedicated discussion forum where you can post your questions, and either the course instructors or fellow students will assist you.
6. Is the course content updated regularly?
   Absolutely! We pride ourselves on keeping the content current. As ASP.NET Core evolves, we update our question bank to reflect the latest changes and best practices.
7. Can I access the course content offline?
   While the primary mode is online, some platforms allow downloading course material for offline access. Please check the platform-specific features.
8. How is the quiz format beneficial for learning?
   The interactive quiz format promotes active engagement, helps in reinforcing concepts, and offers instant feedback, making the learning process more effective.
9. Can I retake quizzes if I don’t perform well the first time?
   Yes, you can retake quizzes as many times as you like. It’s all about mastering the content!
10. Are there any prerequisites for this course?
    A basic understanding of web development concepts can be beneficial, but it’s not mandatory. The course is designed to accommodate learners with varied skill levels.

Join us on this journey as we delve deep into the world of ASP.NET Core, blending theory with practical exercises, quizzes, and real-world examples. By the end of this course, you’ll be equipped with the skills and knowledge to build professional-grade web applications and services with ASP.NET Core.

Who this course is for:

• Beginner Web Developers: Individuals looking to step into the world of web development with a modern and powerful framework.
• Experienced ASP NET Developers: Professionals familiar with the older ASP NET framework and seeking to transition to or deepen their understanding of ASP NET Core.
• Full Stack Developers: Developers versed in frontend technologies, wanting to expand their backend skillset using ASP NET Core.
• Backend Developers: Those familiar with other backend frameworks but looking to diversify their knowledge with ASP NET Core.
• Software Engineering Students: Individuals currently studying software development or computer science and seeking practical knowledge to complement their academic learning.
• Job Seekers in Web Development: Professionals preparing for job interviews or aiming to enhance their résumés with a strong grasp of ASP NET Core.