Frequently asked ASP.Net Web API Interview Questions

In this article, I will share frequently asked ASP.Net Web API Interview Questions for freshers as well as experienced .NET developers candidates to crack your Web API interview. Find the list below:-

• What is ASP.NET  Web API?
• What is the difference between ASP.Net Web API and WCF?
• When to prefer ASP.Net Web API over WCF?
• Which .Net Framework supports ASP.Net Web API?
• What are the RESTful services?
• What are the new features introduced in ASP.Net Web API 2.0?
• Explain Request Verbs or HTTP Verbs?
• What are HTTP Status Codes?
• What is the Request Header, Request, and Response Body?
• How to provide an alias name for Web API Action?
• What is parameter binding in ASP.Net Web API?
• What is Media-Type Formatter in Web API?
• How can we return data only in JSON or XML formatted data in Web API?
• What is Authentication?
• What is Authorization?
• Tell us the use of Authorize Attribute?
• What is Basic Http Authentication?
• What are the advantages and disadvantages of Basic Authentication?
• How to create a custom Basic Authentication Web API filter?
• Explain how we can implement token-based authentication in Web API project?
• How Web API Routes HTTP request to the Controller ASP.NET MVC?
• How to define a route in ASP.NET MVC?
• How to include Action Name in the routing template?
• Explain attribute-based routing and how can we enable it in a web API project?
• What is the use of RoutePrefix attribute?
• What are the Route Constraints?
• Why we need Web API versioning?
• In How many ways we can do Web API Versioning?
• Explain exception handling and how to handle the exception with the help of HttpResponseException Class?
• What is Dependency Injection?
• Explain what are the different types of techniques to implement Dependency Injection in Web API?
• What are Dependency Injection Containers or DI Containers?
• How we can Deploy the ASP.NET Web API?
• How to deploy the ASP.NET Web API on the IIS Server?
• What are the steps required to Self-Host an ASP.NET Web API?

References:

1. Stack Overflow – ASP.NET Web API

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