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Q. Could you please explain ASP.NET?
The ASP.NET MVC is a framework for developing web based application using general Model View Controller pattern in ASP.NET. It provides an alternative to ASP.NET Web Forms pattern. It is a very powerful and efficient way to separate the concern with in an application. The MVC pattern has following main components:
Q. What is Razor?
Razor is a view engine. View engine is responsible for rendering the HTML page view to the browser. It is an advanced view engine, introduced with MVC3. Razor syntax are advanced, compact and easy to learn. By default ASP.NET MVC supports two view engines: ASPX and Razor.
Q. What is ViewData and ViewBag?
ViewBag and ViewData are two options which are used to pass information from controller to view in ASP.Net MVC. Both have short life. Short life means value of both becomes null when redirection occurred. This is because their purpose is to provide communication between views and controllers.
Q. How many types of ASP.NET are currently released?
The current version of ASP.NET is at 4.0; previous versions include 1, 1.1, 2.0 and 3.5. The current version is more concentrated on AJAX and LINQ. Version 3.0 of ASP.NET does not exist.
Q. What does ASP.NET 2.0 improve over the previous version?
ASP.NET 2.0 improves by adding new features such as: master pages, new controls, themes, security, profiles and more.
Q. What does ASP.NET AJAX do?
Q. What is LINQ and what does it do?
LINQ means Language Integrated Query and is an extension to the C# and VB languages. It allows for writing of these languages codes that manipulate in-memory data just like querying a database.
Q. Do current web browsers support ASP.NET 3.5? What is the role of ASP.NET in web development?
Yes, Current browser versions fully support ASP.NET 3.5(IE 5, Opera 7.6, Safari 1.2 and Firefox 1.0). ASP.NET is designed to provide a client callback feature that handles some of the work web browsers should handle.
Q. Is ASP.NET 3.5 a full ASP.NET version?
No ASP.NET 3.5 is designed to add features over the 2.0 version and the most important ones are: CLR and WCF. New 3.5 version list of important assemblies consists of:
a) System – core;
d) Xml.Linq and
e) Web.Extensions – dll.
Q. How do you add ASP.NET into a web site?
After creating a new web site you can add ASP.NET by going to the option menu, selecting add new item; you then select web form and enter the value FirstPage.aspx.
Q. What are web forms and what do they do?
Web forms allow the creation of a web based application that uses the same interface as Windows applications.
Q. What is page processing?
Page processing allows ASP.NET to execute the web server on the server by a technique called postback. It also enables ASP to create a seamless user experience where web applications are stateless.
Q. How are controls handled in ASP.NET?
Controls are placed in a tag that is marked with the runat=”server” attribute, thus allowing the user to work on the server side of the application.
Q. What is the ASP.NET event model?
ASP.NET provides a change to the linear processing model because of its event driven model. By providing, each event handler with a discrete method, the page code becomes organized and clean.
Q. How do the events in ASP.NET function?
The events allow ASP.NET to create pages and control objects so that the newly created page can run smooth; it also triggers a postback and intercepts the returned page recreating the page objects; it then checks the operations triggered by the postback and finally renders the HTML page and returns it to the client.
Q. What is the view state mechanism in ASP.NET?
To deal with the limitations of HTML, ASP has an integrated state serialization mechanism. It means that properties of a certain page that get changed enable ASP to make notes and keep track of them.
Q. Does ASP.NET follow the rules of XHTML?
Yes. The core ASP controls follow the XHTML rules and to make sure the page is compliant with XHMTL the users have to make sure the static content they add follows these rules.
Q. How does the user code initialize?
It is done by using the Page.Load event in the stage of processing of a page. This event always sets off no matter if the page is being requested for the first time or part of a postback.
Q. Does ASP.NET include validation controls?
Yes it does. These controls fire before a page is loaded but before the actual events take place. By having the validation controls self-sufficient ASP.NET does not make it mandatory for the user to respond to them.
Q. What is the Response object in ASP.NET?
The Response object is an instance of the System.Web.HttpResponse class and is the server’s response to a class. It provides important functionality: cookie features and the Redirect () method.
Q. What is the Server object?
The Server object is an instance of the System.Web.HttpServerUtility class and it provides miscellaneous methods and properties that help the web server.
Q. What is the User object?
The User object shows information about the user making a request to a web server and it allows the users to see the user’s role membership by implementing the System.Security.Principal.IPrincipal.
Ravindra Savaram is a Content Lead at Mindmajix.com. His passion lies in writing articles on the most popular IT platforms including Machine learning, DevOps, Data Science, Artificial Intelligence, RPA, Deep Learning, and so on. You can stay up to date on all these technologies by following him on LinkedIn and Twitter.