Are you planning for an ASP.NET Core interview? Well, if you think you’ve found the best site, you have come to the right place. In this article, we will highlight and explain the ten important fundamental concepts that would make you employable and prepare you for the interviewing process. Here are some instances of ASP.NET Core interview questions and answers that will also explain these very important areas to you.

1. Understanding ASP. NET Core Fundamentals

ASP. NET Core is a new, improved platform for creating modern, cloud-oriented, web-connected applications . When preparing for ASP.NET Core interview questions , its crucial to grasp the following fundamentals:

• Cross-platform capability
• Modular architecture
• Dependency injection
• Middleware pipeline
• Configuration system

It is crucial to respond to these questions, which are usually asked by an interviewer regarding some fundamental concepts that support the frame of reference: how exactly does it make the system more flexible and efficient.

2. Middleware in ASP. NET Core

Middleware is one of the basic concepts in ASP.NET Core. It is software that gets compiled into application pipeline to deal with requests and responses. Some of the common ASP.NET Core interview questions about middleware includes:

• What is middleware?
• Middleware pipelines as the name depicts act as pipelines in processing information but how does this work?
• So you know the order of middleware execution is like this
• Which of the functions of ASP built in middleware components are the following NET Core?

Be ready to explain how implementation of middleware can be applied to functions like authentication, routing, and handling of exceptions.

3. Dependency Injection in ASP. NET Core

Another fantastic feature is Dependency Injection (DI) which is a necessity in ASP. NET Core. It is a mechanism that can help you implement the principle of IoC between an object and the services it uses. ASP.NET interview questions often cover:

• What is Dependency Injection?
• How does ASP. NET Core implement DI?
• As you have learned from this chapter, what are the various timespans that can be adopted for services in ASP.NET Core DI?
• You should explain what Transient, Scoped, and Singleton mean when it comes to lifetimes.

The instructor should be prepared to expound on ways of listing and employing services in an ASP. NET Core application.

4. Routing in ASP. NET Core

Routing is one of the ways of mapping between incoming HTTP requests and controller actions. ASP.NET Core interview questions and answers often include topics like:

• Static Routing vs Attribute Based Routing
• Route constraints
• Route templates
• The endpoint routing (Which was added to ASP.NET Core in version 3.0

Ensure that you are are able to explain steps used in defining routes as well as how the routing system works in ASP.NET Core applications.

5. Model Binding and Validation

Model binding is the way of binding data that is contained in an HTTP request to parameters that exist in the action method. This can be ensured with other categories of data since validation establishes certain criteria that this data has to meet. Common ASP. NET Core interview questions in this area include:

• How does model binding work in ASP.NET Core?
• What is possible to mention about the types of model binding?
• Where and how can you implement your model binders?
• What is the understanding of data annotations and how does validation take place using data annotations?

Be ready to explain both, server-side and client-side validation mechanisms.

6. Authentication and Authorization

Security is one of the key components of Web applications and ASP. That is why the set of ASP.NET Core interview questions and answers often includes questions regarding this topic. Key areas to understand include:

• Identity framework in ASP.NET Core
• JSON Web Token (JWT) based authentication
• Role-based authorization
• Policy-based authorization
• OAuth and OpenID Connect

Ensure that you are in a position to justify methods that can be used in defending different types of authentications and how to protect ASP.NET Core applications.

7. State Management in ASP. NET Core

The management of state in web applications is always of considerable importance and interviewers thus explore ASPNET interview questions in this area. Be prepared to discuss:

• Session state
• TempData
• Temporary/Material (Memory Cache, Distributed Cache)
• Application state

Know how these state management techniques are different from each other and when should they be applied.

8. Entity Framework Core

As for ORM (Object-Relational Mapping) tool, ASP prefers to use Entity Framework Core. NET Core applications. Common ASP. NET Core interview questions about EF Core include:

• Code-First vs Database -First approaches
• Migrations
• LINQ queries in EF Core
• Lazy loading vs eager loading
• Relationships (one-to-many, many-to-many)

Be prepared to discuss how method Configure and method Use statements are used to configure and set up EF Core in an ASP. NET Core application.

9. WEB API Development in ASP. NET Core

Development of RESTful APIs is one of the most important aspects in the craftsmanship of a contemporary web developer . ASP. NET Core interview questions and answers often cover topics like:

• RESTful principles
• HTTP methods (GET, POST, PUT, DELETE, etc.)
• Content negotiation
• Versioning Web APIs
• Swagger/Open API integration

Ensure it is possible for you to defend how you would construct and consume Web APIs in ASP. NET Core.

10. Performance Optimization in ASP. NET Core

Another factor that plays an important role in Web development is performance. There is a possibility of encountering ASP NET Core interview questions related to optimization methods. Be prepared to discuss:

• Caching strategies
• Asynchronous programming with async/await
• Response compression
• Bundling and minification
• Lazy loading

Learn how these techniques increase the ASP.NET Core applications of your organization.

Conclusion

Understanding these ten ideas will go a long way in increasing your likelihood of winning in an ASP. NET Core interview. Understand that, interviewers are not interested in response to specific questions only but on the depth of understanding that the interviewee has in the framework and what it offers. Try to describe all these notions in your own way and do not be surprised if interviewers ask for actual examples of using all these things in your work. For more job vacanices for IT professionals or for career related tips do not forget to visit Rozgar.com one of the leading web portals exclusively for IT professionals seeking job in various organisations.

Frequently Asked Questions