ASP.NET MVC Interview Questions and Answers Part 3

1.) What are the features of ASP.NET MVC 3 Template ?                                                

• Asp.net mvc was released on january 13 ,2011
• It runs on .NET Framework 4.0 and with visual studio 2010 and above.
• It uses Razor as a default view engine.but you can use ASPX or web form view engine also.
• It helps in remote validation.
• It provides compare attribute.
• It enhanced in DataAnnotations  attributes for model validation on client and server sides.
• It supports compare attribute.
• It act as a dependency resolver.
• It helps partial -page output caching.
• It uses View Bag dynamic property for passing data from controller to view.
• It supports Global action features also.
• It support child action Output caching.
• It uses NuGet to deliver software and manage dependency through the platform.
• It support Entity framework codes.
• It provide better java script support in template.
• etc.

2.) What are advantages of ASP.NET MVC  ?                                                                        
There are following advantage of asp.net mvc as given below.

• Asp.net mvc has three main components model,view and controller which make it easier to manage the application complexity.
• Application developers has full control on behavior of mvc application.
• An Asp.net mvc application is more pluggable and extensible.We can customize it easily.
• Asp.net application supports following features such as Application Arcitecture model, authentication and authorization,roles and membership,caching and session etc.
•  Mvc framework supports a powerful URL Routing mechanism that helps to build a good application.
• The mvc framework provide better support to test driven development (DDD).
• Asp.net mvc framework helps in search engine optimization also.     

3.) What are default view engine in ASP.NET MVC  ?                                                       
There are two default view engine in asp.net mvc as given below:-

1. ASPX (Web Form)
2. Razor

 4.) Can we remove default view engine in ASP.NET MVC and how  ?                        
Yes, we can use following codes as given below:-

protected void Application_Start()  
{  
      ViewEngines.Engines.Clear();  
}  

5.) What are view engines ?                                                                                                         
 A View Engine is a MVC Subsystem which is responsible for rendering the view into HTML form to the Browser(Chrome,Internet Explorer,Firefox etc.).
6.) What are the default view engines used in asp.net mvc ?                                         

• Spark
• Nhamal
• Hasic
• NDango
• Bellevue 
• Brail etc.

7.) How does a  view engine work ?                                                                                          
Each view engine (open source,non open source) has using following components as given below:-

• View Engine Class :-  This class implements the IViewEngine interface and responsible for locating view templates.You can see this class,when you will develop any  ASP.NET MVC application.
• View Class :- This class implements the IViewEngine Interface and responsible for combing the template with data from the current context. This convert it to HTML Mark up as a output.
• Template Parsing engine :- The View Engine parse the template and compiles the view executable code.

Note :-  You can use multiple view engine for your ASP.NET MVC application.

8.) What is ASPX view engine  ?                                                                                                 

• This default view engine for MVC 1 and MVC 2 template. 
• This view engine uses same syntax as asp.net web forms uses .
• It uses file extension (.aspx,ascx,.master etc.) as asp.net web forms. 
• It uses <% %> character for data binding purpose.

9.) What is Razor view engine  ?                                                                                                

• Razor View Engine is an advanced view engine ,that was introduced Microsoft in MVC 3 template. 
• Razor is a default view engine in MVC 3 and MVC 4 template.
• Razor is a new markup syntax developed by Microsoft.
•  Razor uses @ character to write the markup syntax.
• Razor is more compact than other view engine.
• Razor is a best view engine developed by Microsoft.
• Razor is more compatible with unit testing.
• Razor uses less codes to bind the data in mvc template.
• Razor is very easy and much clean web form syntax. 

10.) Can we share a view engine across multiple platform ?                                        
Yes, It is possible by putting a view into the share folder.

11.) What is  URL Routing and URL Rewriting ?                                                               

• URL Routing is focused on mapping a URL to a resource while URL rewriting is focused on mapping one url (new url) to another url (old url).
• URL routing map to the original route while URL rewriting rewrites your old url to new one but routing is not like that.