ASP.NET MVC Interview Questions and Answers by Shailendra Chauhan
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This document is a comprehensive guide on ASP.NET MVC interview questions and answers, suitable for both novice and experienced professionals. It covers various topics related to ASP.NET MVC, including the MVC design pattern, routing, view engines, action methods, and REST principles among others. The author, Shailendra Chauhan, provides insights from his extensive experience in .NET technologies and encourages readers to deepen their understanding and stay updated through his blogs.
ASP.NET MVC Interview Questions and Answers by Shailendra Chauhan
- 2. Page1 ASP.NET MVC Interview Questions and Answers All rights reserved. No part of this book can be reproduced or stored in any retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, uploading on server and scanning without the prior written permission of the author. The author of this book has tried his best to ensure the accuracy of the information described in this book. However, the author cannot guarantee the accuracy of the information contained in this book. The author will not be liable for any damages, incidental or consequential caused directly or indirectly by this book. Further, readers should be aware that the websites or reference links listed in this book may have changed or disappeared between when this book was written and when it is read. All other trademarks referred to in this book are the property of their respective owners. Release History ļ· Initial Release 1.0.0 - 10th Mar 2014 ļ· Second Release 1.0.1 - 1st Jan 2015 ļ· Third Release 1.0.2 - 12th Aug 2016
- 3. Page2 Dedication My mother Mrs. Vriksha Devi and my wife Reshu Chauhan deserve to have theirs name on the cover as much as I do for all theirs support made this possible. I would like to say thanks to all my family members Virendra Singh(father), Jaishree and Jyoti(sisters), Saksham and Pranay(sons), friends, to you and to readers or followers of my blog www.dotnettricks.com to encourage me to write this book. -Shailendra Chauhan
- 4. Page3 Introduction Writing a book has never been an easy task. It takes a great effort, patience and consistency with strong determination to complete it. Also, one should have a depth knowledge over the subject is going to write. So, what where my qualification to write this book? My qualification and inspiration come from my enthusiasm for and the experience with the technology and from my analytic and initiative nature. Being a trainer, analyst, consultant and blogger, I have through knowledge and understandings of .NET technologies. My inspiration and knowledge has also come from many years of my working experience and research over it. So, the next question is who this book is for? This book covers useful Interview Questions and Answers on ASP.NET MVC. This book is appropriate for novice as well as for senior level professionals who wants to strengthen their skills before appearing for an interview on ASP.NET MVC. This book is equally helpful to sharpen their programming skills and understanding ASP.NET MVC in a short time. This book is not only the ASP.NET MVC interview book but it is more than that. This book helps you to get the depth knowledge of ASP.NET MVC with a simple and elegant way. This book is updated to latest version of ASP.NET MVC5 and ASP.NET WEB API2. I hope you will enjoy this book and find it useful. At the same time I also encourage you to become a continue reader of my blogs www.gurukulsight.com, www.dotnettricks.com and be the part of the discussion. But most importantly practice a lot and enjoy the technology. Thatās what itās all about. To get the latest information on ASP.NET MVC, I encourage you to follow the official Microsoft ASP.NET community website at www.asp.net. I also encourage you to subscribe to my blogs at www.gurukulsight.com, www.dotnettricks.com that contains .NET, C#, ASP.NET MVC, EF, jQuery and many more tips, tricks and tutorials. All the best for your interview and happy programming!
- 5. Page4 About the Author Shailendra Chauhan - An Entrepreneur, Author, Architect, Corporate Trainer, and Microsoft MVP Shailendra is the author of some of most popular e-books which encompass technical Interview on AngularJS Interview Questions and Answers, LINQ Interview Questions and Answers and MVC Interview Questions and Answers. Furthermore, he is a technical reviewer for book on ASP.NET MVC 4 Mobile App Development. Shailendra Chauhan is renowned for sharing his working experience, research and knowledge through his reputed and widely subscribed to blogs - www.gurukulsight.com and www.dotnettricks.com. Specifically, his blog www.dotnettricks.com provides a vast storehouse of knowledge and support resources in the field of .NET technologies worldwide and is listed as a non-Microsoft resource in The Microsoft Official Community Site. His blogs and training approach provide an easily accessible and highly innovative learning experience for people everywhere, and from a range of backgrounds and skill levels thereby offering the ultimate in training around the world. Moreover, and to his credit he has delivered 200+ training sessions to professionals world-wide in Microsoft .NET technologies and other technologies including JavaScript, AngularJS, Node.js, Ionic and NoSQL Databases. In addition, he provides Instructor-led online and classroom training programs for all above technologies. Shailendraās strong combination of technical skills and solution development for complex application architecture with proven leadership and motivational skills have elevated him to a world-renowned status, placing him at the top of the list of most sought-after trainers. āI always keep up with new technologies and learning new skills to deliver the best to my studentsā says Shailendra Chauhan, he goes on to acknowledge that the betterment of his followers and enabling his students to realize their goals are his prime objective and a great source of motivation and satisfaction. Shailendra Chauhan - āFollow me and you too will have the key that opens the door to successā With more than 7 years in hand experience, Shailendra Chauhan is a polymath in the domains of Microsoft .NET technologies and an array of other technologies including JavaScript, AngularJS, Node.js, Ionic and NoSQL Databases to name but a few. His extensive knowledge has been broadcast in a number of articles-of-the- day, and reported in daily-community-spotlight along with being listed in Recommended Resources for MVC section on the Official Microsoft ASP.NET Community Site. He has rewarded as Microsoft MVP for his exceptional contributions in Microsoft Visual Studio and Development Technologies.
- 6. Page5 How to Contact Us Although the author of this book has tried to make this book as accurate as it possible but if there is something strikes you as odd, or you find an error in the book please drop a line via e-mail. The author e-mail addresses are listed as follows: ļ· [email protected] ļ· [email protected] I am always happy to hear from my readers. Please provide with your valuable feedback and comments! You can follow us on facebook, twitter, linkedin and google plus or subscribe to RSS feed.
- 7. Page6 Table of Contents ASP.NET MVC Interview Questions and Answers............................................................. 1 Dedication ....................................................................................................................... 2 Introduction..................................................................................................................... 3 About the Author............................................................................................................. 4 How to Contact Us........................................................................................................... 5 ASP.NET MVC................................................................................................................. 10 Q1. What is MVC? .......................................................................................................................................... 10 Q2. Explain MVC design pattern? .................................................................................................................. 10 Q3. What is Domain Driven Design and Development? ................................................................................ 11 Q4. What is MVP pattern? ............................................................................................................................. 11 Q5. What is MVVM pattern?.......................................................................................................................... 12 Q6. What is ASP.NET MVC?............................................................................................................................ 13 Q7. How MVC pattern works in ASP.NET MVC? ............................................................................................ 13 Q8. How Model, View and Controller communicate with each other in ASP.NET MVC? ............................. 14 Q9. What are advantages of ASP.NET MVC? ................................................................................................. 15 Q10. Explain brief history of ASP.NET MVC? ................................................................................................... 15 Q11. What is difference between 3-layer architecture and MVC architecture?............................................. 17 Q12. What is difference between ASP.NET WebForm and ASP.NET MVC? .................................................... 18 Q13. What is ViewModel in ASP.NET MVC? .................................................................................................... 18 Q14. Explain ASP.NET MVC pipeline? .............................................................................................................. 18 Q15. What is Routing in ASP.NET MVC? .......................................................................................................... 21 Q16. How to define a route in ASP.NET MVC? ................................................................................................ 22 Q17. What is Attribute Routing and how to define it? .................................................................................... 23 Q18. When to use Attribute Routing? ............................................................................................................. 24 Q19. How to enable Attribute Routing in ASP.NET MVC? ............................................................................... 24 Q20. How to define Attribute Routing for Area in ASP.NET MVC?.................................................................. 25 Q21. What is difference between Routing and URL Rewriting?...................................................................... 26 Q22. What is Route Constraints in ASP.NET MVC?.......................................................................................... 26 Q23. How route table is created in ASP.NET MVC?......................................................................................... 27
- 8. Page7 Q24. What are important namespaces in ASP.NET MVC?............................................................................... 27 Q25. What is View Engine? .............................................................................................................................. 27 Q26. How View Engine works? ........................................................................................................................ 27 Q27. What is Razor View Engine? .................................................................................................................... 28 Q28. How to make Custom View Engine?........................................................................................................ 28 Q29. How to register Custom View Engine in ASP.NET MVC?......................................................................... 29 Q30. Can you remove default View Engine in ASP.NET MVC? ........................................................................ 29 Q31. What is difference between Razor and WebForm engine? .................................................................... 30 Q32. What are HTML Helpers in ASP.NET MVC? ............................................................................................. 30 Q33. What are different types of HTML Helpers? ........................................................................................... 31 Q34. What are Url Helpers?............................................................................................................................. 34 Q35. What is Validation Summary? ................................................................................................................. 35 Q36. What are AJAX Helpers?.......................................................................................................................... 35 Q37. What is unobtrusive AJAX?...................................................................................................................... 35 Q38. What are various configuration options for AJAX Helpers?.................................................................... 35 Q39. What is Cross Domain AJAX?................................................................................................................... 36 Q40. What are Layouts in ASP.NET MVC?........................................................................................................ 36 Q41. What are Sections in ASP.NET MVC?....................................................................................................... 37 Q42. What are RenderBody and RenderPage in ASP.NET MVC?..................................................................... 37 Q43. What are Styles.Render and Scripts.Render?.......................................................................................... 38 Q44. How to enable and disable optimizations in ASP.NET MVC?.................................................................. 38 Q45. What is ViewStart? .................................................................................................................................. 38 Q46. When to use _ViewStart?........................................................................................................................ 39 Q47. What are different ways of rendering layout in ASP.NET MVC?............................................................. 39 Q48. What is App_Start folder in ASP.NET MVC?............................................................................................ 40 Q49. What are different ways of returning/rendering a view in ASP.NET MVC?............................................ 41 Q50. What are differences among ViewData, ViewBag, TempData and Session?.......................................... 41 Q51. How to persist data in TempData?.......................................................................................................... 43 Q52. How to control Session behavior in ASP.NET MVC?................................................................................ 44 Q53. How TempData is related to Session in ASP.NET MVC?.......................................................................... 44 Q54. What are Action methods in ASP.NET MVC? .......................................................................................... 45 Q55. What is ActionResult and how is it different from others?..................................................................... 45
- 9. Page8 Q56. How to make a Non-Action method in ASP.NET MVC?........................................................................... 46 Q57. Can you change action method name?................................................................................................... 46 Q58. How to restrict an action method to be invoked only by HTTP GET, POST, PUT or DELETE?................. 46 Q59. How to determine an action method is invoked by HTTP GET or POST?................................................ 46 Q60. How to determine an AJAX request? ...................................................................................................... 47 Q61. What is Data Annotations in ASP.NET MVC? .......................................................................................... 47 Q62. How to apply Server side validation in ASP.NET MVC?........................................................................... 48 Q63. How to determine there is no error in Model State?.............................................................................. 49 Q64. How to enable and disable client-side validation in ASP.NET MVC? ...................................................... 49 Q65. What is a CDN and advantages of CDN? ................................................................................................. 50 Q66. What is jquery.validate.unobtrusive.js?.................................................................................................. 50 Q67. What is Bundling and Minification in ASP.NET MVC? ............................................................................. 50 Q68. Can we use Bundling and Minification in ASP.NET MVC3 or ASP.NET4.0?............................................. 52 Q69. How Bundling use browser Cache capability?......................................................................................... 53 Q70. What is Partial View in ASP.NET MVC? ................................................................................................... 53 Q71. How do you return a partial view from controller? ................................................................................ 53 Q72. What are different ways of rendering a Partial View in ASP.NET MVC?................................................. 53 Q73. What is Area in ASP.NET MVC? ............................................................................................................... 54 Q74. How to register Area in ASP.NET MVC? .................................................................................................. 55 Q75. What is Child action and how to invoke it?............................................................................................. 55 Q76. What is Scaffolding?................................................................................................................................ 56 Q77. How Scaffold templates works in ASP.NET MVC?................................................................................... 56 Q78. What are ASP.NET MVC Filters and Attributes?...................................................................................... 58 Q79. What are different types of Filters in ASP.NET MVC?............................................................................. 59 Q80. When Exception filters are executed in ASP.NET MVC? ......................................................................... 60 Q81. What is the order of execution of filters in ASP.NET MVC?.................................................................... 61 Q82. How to configure filters in ASP.NET MVC?.............................................................................................. 61 Q83. How Authentication and Authorization work in ASP.NET MVC? ............................................................ 61 Q84. How Forms Authentication and Authorization work in ASP.NET MVC? ................................................. 61 Q85. How to implement custom Forms Authentication and Authorization in MVC? ..................................... 63 Q86. How to allow HTML tags in ASP.NET MVC?............................................................................................. 65 Q87. What is caching and when to use it?....................................................................................................... 66
- 10. Page9 Q88. What are advantages of caching? ........................................................................................................... 66 Q89. What is output caching?.......................................................................................................................... 67 Q90. What is Donut caching and Donut hole caching in ASP.NET MVC? ........................................................ 67 Q91. What is loose coupling and how is it possible?....................................................................................... 68 Q92. What are Dependency Inversion Principle (DIP) and IoC? ...................................................................... 69 Q93. What is Dependency Injection (DI)?........................................................................................................ 70 Q94. What is Service Locator? ......................................................................................................................... 71 Q95. What are different ways to implement Dependency Injection (DI)?...................................................... 72 Q96. What are advantages of Dependency Injection (DI)? ............................................................................. 75 Q97. What is IoC or DI container?.................................................................................................................... 75 Q98. What are popular DI containers? ............................................................................................................ 76 Q99. What is Test Driven Development (TDD)?............................................................................................... 76 Q100. What are commonly used tool for Unit Testing in ASP.NET MVC?..................................................... 76 ASP.NET WEB API........................................................................................................... 78 Q1. What is REST?.......................................................................................................................................... 78 Q2. Explain REST principle?............................................................................................................................ 78 Q3. What is difference between REST and SOAP?......................................................................................... 78 Q4. What is ASP.NET WEB API? ..................................................................................................................... 79 Q5. Why to choose ASP.NET WEB API?.......................................................................................................... 79 Q6. What is difference between WCF and WEB API and WCF REST and Web Service?................................ 80 Q7. Which one to choose between WCF and WEB API?................................................................................ 81 Q8. What is difference between ASP.NET MVC and ASP.NET WEB API?....................................................... 82 Q9. Can you return view by using WEB API method?.................................................................................... 82 Q10. Can you change WEB API action name like ASP.NET MVC?.................................................................... 83 Q11. Can you restrict a WEB API action method to be invoked only by HTTP GET, POST, PUT or DELETE?... 83 Q12. How to call WEB API in ASP.NET MVC?................................................................................................... 83 Q13. How ASP.NET WEB API routing is different from ASP.NET MVC routing? .............................................. 84 Q14. How to enable Attribute Routing in ASP.NET WEB API2?....................................................................... 84 Q15. How to define attribute routing in ASP.NET WEB API2?......................................................................... 84 Other Free E-Books........................................................................................................ 86
- 11. Page10 1 ASP.NET MVC Q1. What is MVC? Ans. MVC stands for Model-View-Controller. It is a software design pattern which was introduced in 1970s. Also, MVC pattern forces a separation of concerns, it means domain model and controller logic are decoupled from user interface (view). As a result, maintenance and testing of the application become simpler and easier. Q2. Explain MVC design pattern? Ans. MVC design pattern splits an application into three main aspects: Model, View and Controller Model - The Model represents a set of classes that describe the business logic i.e. business model as well as data access operations i.e. data model. It also defines business rules for data means how the data can be changed and manipulated. View - The View represents the UI components like CSS, jQuery, html etc. It is only responsible for displaying the data that is received from the controller as the result. This also transforms the model(s) into UI. Controller - TheController is responsible to process incoming requests. It receives input from users via the View, then process the user's data with the help of Model and passing the results back to the View. Typically, it acts as the coordinator between the View and the Model.
- 12. Page11 Today, this pattern is used by many popular framework like as Ruby on Rails, Spring Framework, Apple iOS Development and ASP.NET MVC. Q3. What is Domain Driven Design and Development? Ans. Domain-Driven Design (DDD) is a collection of principles and patterns that help developers to take design decisions to develop elegant systems for different domains. It is not a technology or methodology. The main components of DDD are: Entity, Value Object, Aggregate, Service and Repository. Entity- An object that has an identity- it is unique within the system, like Customer, Employee etc. Value Object- An object that has no identity within the system like Rate, State etc. Note: A value object can become an entity depending on the situation. Aggregate: An aggregate root is a special kind of entity that consumers refer to directly. All consumers of the aggregate root are called as aggregate. The aggregate root guarantees the consistency of changes being made within the aggregate. Service- A service is a way of dealing with actions, operations and activities within your application. Repository- A repository is responsible to store and to retrieve your data. It is not a concern how and where data will be persisted. So, it can be SQL server, oracle, xml, text file or anything else. Repository is not a Data Access Layer but it refers to a location for storage, often for safety or preservation. For more info refer this link http://msdn.microsoft.com/en-us/magazine/dd419654.aspx Q4. What is MVP pattern? Ans. This pattern is similar to MVC pattern in which controller has been replaced by the presenter. This design pattern splits an application into three main aspects: Model, View and Presenter. Model - The Model represents a set of classes that describes the business logic and data. It also defines business rules for data means how the data can be changed and manipulated. View - The View represents the UI components like CSS, jQuery, html etc. It is only responsible for displaying the data that is received from the presenter as the result. This also transforms the model(s) into UI. Presenter - The Presenter is responsible for handling all UI events on behalf of the view. This receive input from users via the View, then process the user's data with the help of Model and passing the results back to the View. Unlike view and controller, view and presenter are completely decoupled from each otherās and communicate to each otherās by an interface. Also, presenter does not manage the incoming request traffic as controller.
- 13. Page12 This pattern is commonly used with ASP.NET Web Forms applications which require to create automated unit tests for their code-behind pages. This is also used with windows forms. Key Points about MVP Pattern 1. User interacts with the View. 2. There is one-to-one relationship between View and Presenter means one View is mapped to only one Presenter. 3. View has a reference to Presenter but View has not reference to Model. 4. Provides two-way communication between View and Presenter. Q5. What is MVVM pattern? Ans. MVVM stands for Model-View-View Model. This pattern supports two-way data binding between view and View model. This enables automatic propagation of changes, within the state of view model to the View. Typically, the view model uses the observer pattern to notify changes in the view model to model. Model - The Model represents a set of classes that describes the business logic and data. It also defines business rules for data means how the data can be changed and manipulated. View - The View represents the UI components like CSS, jQuery, html etc. It is only responsible for displaying the data that is received from the controller as the result. This also transforms the model(s) into UI. View Model - The View Model is responsible for exposing methods, commands, and other properties that helps to maintain the state of the view, manipulate the model as the result of actions on the view, and trigger events in the view itself.
- 14. Page13 This pattern is commonly used by the WPF, Silverlight, Caliburn, nRoute etc. Key Points about MVVM Pattern 1. User interacts with the View. 2. There is many-to-one relationship between View and ViewModel means many View can be mapped to one ViewModel. 3. View has a reference to ViewModel but View Model has no information about the View. 4. Supports two-way data binding between View and ViewModel. Q6. What is ASP.NET MVC? Ans. ASP.NET MVC is an open source framework built on the top of Microsoft .NET Framework to develop web application that enables a clean separation of code. ASP.NET MVC framework is the most customizable and extensible platform shipped by Microsoft. Q7. How MVC pattern works in ASP.NET MVC? Ans. Working of MVC pattern in ASP.NET MVC is explained as below: The Model in ASP.NET MVC The Model in ASP.NET MVC can be broken down into several different layers as given below: 1. Objects or ViewModel or Presentation Layer - This layer contains simple objects or complex objects which are used to specify strongly-typed view. These objects are used to pass data from controller to strongly- typed view and vice versa. The classes for these objects can have specific validation rules which are defined by using data annotations. Typically, these classes have those properties which you want to display on corresponding view/page. 2. Business Layer - This layer helps you to implement your business logic and validations for your application. This layer make use of Data Access Layer for persisting data into database. Also, this layer is directly invoked by the Controller to do processing on input data and sent back to view.
- 15. Page14 3. Data Access Layer - This layer provides objects to access and manipulate the database of your application. Typically, this layer is made by using ORM tools like Entity Framework or NHibernate etc. By default, models are stored in the Models folder of an ASP.NET MVC application. The View in ASP.NET MVC The view is only responsible for displaying the data that is received from the controller as a result. It also responsible for transforming a model or models into UI which provide all the required business logic and validation to the view. By default, views are stored in the Views folder of an ASP.NET MVC application. The Controller in ASP.NET MVC The Controller in ASP.NET MVC, respond to HTTP requests and determine the action to take based upon the content of the incoming request. It receives input from users via the View, then process the user's data with the help of Model and passing the results back to the View. By default, controllers are stored in the Controllers folder an ASP.NET MVC application. Q8. How Model, View and Controller communicate with each other in ASP.NET MVC? Ans. There are following rules for communication among Model, View and Controller: 1. User interacts with the Controller. 2. There is one-to-many relationship between Controller and View means one controller can mapped to multiple views. 3. Controller and View can have a reference to model. 4. Controller and View can talk to each other.
- 16. Page15 5. Model and View cannot talk to each other directly. They communicate to each other with the help of controller. Q9. What are advantages of ASP.NET MVC? Ans. There are following advantages of ASP.NET MVC over Web Forms (ASP.NET): ļ· Separation of concern - MVC design pattern divides the ASP.NET MVC application into three main aspects Model, View and Controller which make it easier to manage the application complexity. ļ· TDD - The MVC framework brings better support to test-driven development. ļ· Extensible and pluggable - MVC framework components were designed to be pluggable and extensible and therefore can be replaced or customized easier then Web Forms. ļ· Full control over application behaviour - MVC framework doesnāt use View State or server based forms like Web Forms. This gives the application developer more control over the behaviors of the application and also reduces the bandwidth of requests to the server. ļ· ASP.NET features are supported - MVC framework is built on top of ASP.NET and therefore can use most of the features that ASP.NET include such as the providers architecture, authentication and authorization scenarios, membership and roles, caching, session and more. ļ· URL routing mechanism - MVC framework supports a powerful URL routing mechanism that helps to build a more comprehensible and searchable URLs in your application. This mechanism helps to the application to be more addressable from the eyes of search engines and clients and can help in search engine optimization. Q10. Explain brief history of ASP.NET MVC? Ans. Here is the list of released version history of ASP.NET MVC Framework with theirs features. ASP.NET MVC1 ļ· Released on Mar 13, 2009 ļ· Runs on .NET 3.5 and with Visual Studio 2008 & Visual Studio 2008 SP1 ļ· MVC Pattern architecture with WebForm Engine ļ· Html Helpers ļ· Ajax helpers ļ· Routing ļ· Unit Testing ASP.NET MVC2 ļ· Released on Mar 10, 2010 ļ· Runs on .NET 3.5, 4.0 and with Visual Studio 2008 & 2010 ļ· Strongly typed HTML helpers means lambda expression based Html Helpers ļ· Templated Helpers ļ· UI helpers with automatic scaffolding & customizable templates ļ· Support for DataAnnotations Attributes to apply model validation on both client and server sides
- 17. Page16 ļ· Overriding the HTTP Method Verb including GET, PUT, POST, and DELETE ļ· Areas for partitioning a large applications into modules ļ· Asynchronous controllers ASP.NET MVC3 ļ· Released on Jan 13, 2011 ļ· Runs on .NET 4.0 and with Visual Studio 2010 ļ· The Razor view engine ļ· Enhanced Data Annotations attributes for model validation on both client and server sides ļ· Remote Validation ļ· Compare Attribute ļ· Session less Controller ļ· Child Action Output Caching ļ· Dependency Resolver ļ· Entity Framework Code First support ļ· Partial-page output caching ļ· ViewBag dynamic property for passing data from controller to view ļ· Global Action Filters ļ· Better JavaScript support with unobtrusive JavaScript, jQuery Validation, and JSON binding ļ· Use of NuGet to deliver software and manage dependencies throughout the platform ASP.NET MVC4 ļ· Released on Aug 15, 2012 ļ· Runs on .NET 4.0, 4.5 and with Visual Studio 2010SP1 & Visual Studio 2012 ļ· ASP.NET WEB API ļ· Enhancements to default project templates ļ· Mobile project template using jQuery Mobile ļ· Display Modes ļ· Task support for Asynchronous Controllers ļ· Bundling and minification ļ· Support for the Windows Azure SDK ASP.NET MVC5 ļ· Released on 17 October 2013 ļ· Runs on .NET 4.5, 4.5.1 and with Visual Studio 2012 & Visual Studio 2013 ļ· One ASP.NET
- 18. Page17 ļ· ASP.NET Identity ļ· ASP.NET Scaffolding ļ· Authentication filters - run prior to authorization filters in the ASP.NET MVC pipeline ļ· Bootstrap in the MVC template ļ· ASP.NET WEB API2 Q11. What is difference between 3-layer architecture and MVC architecture? Ans. 3-layer architecture separates the application into 3 components which consists of Presentation Layer Business Layer and Data Access Layer. In 3-layer architecture, user interacts with the Presentation layer. 3-layer is a linear architecture. MVC architecture separates the application into three components which consists of Model, View and Controller. In MVC architecture, user interacts with the controller with the help of view. MVC is a triangle architecture. MVC does not replace 3-layer architecture. Typically, 3-layer and MVC are used together and MVC acts as the Presentation layer. Free download this complete book by using given link https://goo.gl/MYMrnZ