Answer:- Web API mainly works on the four HTTP protocols, which we can also understand by the CRUD method Create, Read, Update and Delete. Here Create stands for POST, Read for getting, Update for PUT and Delete for DELETE.

Answer:- HTTP status codes are the three-digit code that indicates the response of the server. 1. If one receives a status code in range 1XX, it indicates that the server has received the request, and the outcome is processed. 2. If the response is in range 2XX, it indicates that the request was successful and the server has accepted it. 3. If the response is in range 3XX, then the request has been redirected for further examining. 4. If the response is in range 4XX, then the client has made mistakes in making the request. 5. And, if you receive a response in range 5XX, then there’s a problem from the server’s side in processing the information.

Answer:- 1. The Postman is one of the popular tools for building API and monitoring it. It is a user-friendly and free open-source application. It is excellent for the development of RESTful services. 2. Fiddler is just another free application that enables you to perform different checks on the HTTP protocols and requests. And also create it.

Answer:- Authorize Attributes maintains the security of the application by keeping a check on the authorized and unauthorized users. It helps us to keep the server secure by allowing only the authorized users. We can also quash this attribute by using AllowAnonymous Attribute. If the user is unauthorized, the server returns the HTTP responses with the HTTP status code 4XX. Uses of Authorize Attribute: 1. It keeps the server safe and secure from unsafe external use. 2. By restricting the entrance, only approved users can use it.

Answer:- REST stands for REpresentational State Transfer, while SOAP stands for Simple Object Access Protocol. REST is a structural pattern used in performing web co-operations. If the HTTP protocol is successful, the service provider sends the data in HTML, plain XML, or JSON string.

Answer:- XML notions for Extensible Markup Language. It is composed as, which is both human and machine-readable. XML profoundly supports Unicode for almost all human languages. XML is extensively used in Service-oriented architecture (SOA) and is the default protocol format for SOAP.

Answer:- JSON stands for the JavaScript Object Notation. It is a dictionary-type data format that is very similar to JavaScript. It is the most preferred format due to its extensive human readability. It is serviceable for transmitting less private data through internet services.

Answer:- JSON is very similar to JavaScript, which is one of the most powerful programming languages. And, JSON has proven to be more user-friendly than XML. Even though! XML is a much more powerful data format than JSON. But due to its ease and similarities with one of the powerful languages, it is more common than XML.

Answer:- ASP.NET Web API is an open web interface framework used to build HTTP services for Web Application Programming Interface (Web API). Here ASP notions Active Server Pages. And ASP .NET Web API is just the modified and updated version of ASP. The ASP .NET API is used broadly for creating both RESTful and non-RESTful services.

Answer:- Afresh features in ASP.NET Web API were introduced and, a new version that is ASP.NET Web API 2.0, came into the market to provide more flexibility to its users with the following new features: 1. Net Self-hosting – This reduced the need for regular maintenance. 2. Attribute routing – Uses attributes to set routes in the routing table. 3. CORS: Cross-origin resource sharing – This allows sharing any other website whenever required. 4. OData services extensions of $Select and $expand, here $Select allows to select a property. $expand to select relevant items. 5. IHttpActionResult – Used to create an unauthorized type response by using ExecuteAsync.

Answer:- The benefits of using REST is as follows: 1. More user-friendly and versatile. 2. Most suitable for using it on petite web services due to limited data transfer. 3. Flexible data format. 4. Avail protection by using OAuth protocols.

Answer:- WCF notions Windows Communication Foundation. Formerly, it was identified as Indigo. It is applied to build Service-Oriented Applications(SOA).

Answer:- There are several ways for supervising errors in a Web API. Few errors tackling processes are: 1. HttpResponseException – Handles both the controller and action level exceptions and translates them into 500 internal server error responses. 2. HttpError – CreateErrorResponse is used to create the HttpError method and, with this, one can generate meaningful error messages. 3. Exception Filters – Used to handle unhandled exceptions. 4. Exception Handlers – Used for customizing the exceptions raised.

Answer:- It is a design prototype application that comprises a Model, View, and Controller. Thus, acknowledged as MVC. MVC makes things easier for coders by separating the components. ASP.NET MVC achieves this by displaying various arrangements between the original display and the data model.