ASP NET MVC coding tests and interview questions
The ValidationSummary helper method generates an unordered list (ul element) of validation messages that are in the ModelStateDictionary object. With "Any", the output cache is stored on the server where the request was processed. The recommended store cache is always on the server very carefully. You will learn about some security related tips in the following "Don't use Output Cache".
- Action filters are executed before or after an action is executed.
- Additionally, I ensure that Entity Framework is used efficiently, avoiding N+1 query problems and leveraging caching mechanisms when necessary.
- In action methods, we need to retrieve data from requests to be used by the data.
- A bundle is a logical group of files that are loaded with a single HTTP request.
- In this post, we share the top 50 questions interviewers should include in .NET MVC interviews.
- We can override the ‘OnException' event in the controller and set the result to the view name needed to be invoked when an error occurs.
- ASP.NET MVC is a web application’s framework that helps separate the different components of an MVC application into Model, View, and Controller.
It communicates with databases or other data sources to retrieve, store, and manipulate data. The View is responsible for displaying the data from the Model in a user-friendly format. It defines how the information should be presented on the screen.
How is form authentication implemented in MVC?
You have lots of ground to cover in your prep, including everything from the basics to the more advanced concepts. Plus, you might be asked MVC4 interview questions, as well as ones on MVC5. Screening is not just looking through the candidate’s CV and calling him for the interview. You don’t want to lose a candidate with potential and good programming skills. You don’t want to qualify poor candidates for an interview with your IT team and waste your team’s precious time.
It is usually conducted by qualified HR or communications experts selected for the hiring panel in most organizations. To gauge applicant interview suitability, interest in the role and general qualifications. Right-click on the “RegisterGlobalFilters()” method in Global.asax, and select “Go To Definition” and we can find the code that adds “HandleErrorAttribute” to GlobalFilterCollection. For this we need to do code within the Application_Start() event of the Global.asax, as shown below. Forms Authentication offers users access to specific services so they can verify their credentials using their username or password.
Explain How You Would Integrate Oauth Or OpenID Connect for Authentication in A .NET MVC App.
It permits the implementation of pre and post-processing logic and action methods. To handle cross-site scripting (XSS) attacks in a .NET MVC application, developers can sanitize user input by encoding it before displaying it in views. The ASP.NET MVC framework provides built-in features like request validation and output encoding to prevent XSS attacks.
- Examples of reference types include object, string, arrays, and user-defined classes.
- For example, in the below image for “obj” and “obj1” fresh new instances will be injected for every request.
- At runtime, the Routing engine uses the Route table for matching the incoming request’s URL pattern with the URL patterns defined in the Route table.
- In .NET MVC, Swagger can automatically generate interactive API documentation, client SDKs, and server stubs, facilitating API development and integration.
Diving into the world of third-party libraries and APIs is a critical part of a senior .NET developer’s role. As the complexity of projects grow, so does the need to integrate external tools and resources to achieve the desired outcomes. Regarding memory leaks, I utilize profiling tools like Visual Studio’s built-in profiler or third-party tools such as ANTS Memory https://remotemode.net/ Profiler to pinpoint the source of the leak. Once identified, I refactor the code to properly dispose of objects, implement the IDisposable interface where needed, and employ garbage collection best practices. The .NET ecosystem is constantly evolving, and staying up-to-date is essential for a Senior .NET Developer to remain effective and relevant in their role.
Intermediate Level MVC Questions
If model property values are unexpected, inject error messages within ModelState. To override the route prefix at the action method level, you need to use the ~ (tilde) character. It is very difficult to create certain URI patterns using convention-based routing which https://remotemode.net/become-a-net-mvc-developer/ is common in Restful Services. But using the attribute routing, it is very easy to create those URI patterns. Davinder Passed his post-graduation with merit, he was the first one to submit his project on time, He is highly skilled in typing and research work.
Our instructors, who are FAANG hiring managers, know what it takes to nail tough tech interviews at top technology companies. You can use exception handling to deal with MVC errors, whether it is a Windows Forms application or a web application. As an interviewer, you may need to practice coding to know how scenario-based problems are solved.
What do you understand by filters in MVC?
Garbage collection is an essential concept in the .NET framework, and interviewers want to make sure you have a solid understanding of its purpose and functionality. One significant advantage EF offers is increased productivity, as it automates much of the boilerplate code required for data access operations. This enables developers to focus more on business logic rather than writing repetitive SQL queries. Additionally, EF provides a level of abstraction that promotes cleaner and more maintainable code by separating the application’s data model from the database schema.