Top 10 ASP.NET Interview Questions and Answers

-


Free PDF DOWNLOAD FOR Microsoft Dot Net Course Material

1.What is Asp.Net?

Asp.Net Stands for Active Server Pages. It is a Web Application Framework developed by Microsoft . Asp.Net provides services to allow the Creation,deployment, and execution of web Applications and Web Services .Web Applications  are built  using web forms.

2.What is a Cookie?


 Cookie is a lightweight executable program, which the server posts to client    machines. Cookies store the identity of a user at the first visit of the Web site and validate them later of the next visits for their authenticity. The values of a cookie can be transferred between the user’s request and the server’s response.

3. What is Viewstate?


 ViewState is a Dot Net mechanism to store the posted data among post backs. ViewState allows the state of objects to be stored in a hidden field on the page, saved on client side and transported back to server whenever required.


4. What is caching?


 Caching is a technique used to increase performance by keeping frequently accessed data or files in memory. The request for a cached file/data will be accessed from cache instead of actual location of that file.



5. Explain the concept of Globalization and Localization?


 Globalization is used to create a multilingual application by defining culture specific features like text, date etc. Localization is used to accommodate the cultural differences in an application.




6. What is Post Back?

 There will be a roundtrip of the page between client and a server in request-response model, so this mechanism is called Post Back.

7. Explain Session state management options in ASP.NET?
            
ASP.NET provides In-Process and Out-of-Process state management. In-Process will store the session in memory on the web server. Out-of-Process will store data in an external data source such as SQL Server or a State Server service. Out-of-Process requires that all objects stored in session are serializable.

8. What is the difference between ExecuteScalar and ExecuteNonQuery?
              
ExecuteScalar returns output value where as ExecuteNonQuery does not return any value but the number of rows affected by the query. ExecuteScalar used for fetching a single value and ExecuteNonQuery used to execute Insert and Update statements.

9. What is boxing and unboxing?
                    
Boxing is assigning a value type to reference type variable.
Unboxing is reverse of boxing ie. Assigning reference type variable to value type variable.

10. Explain form authentication using login control?
                 
Login controls encapsulate all the features offered by Forms authentication. Login controls internally use Forms Authentication class to implement security, by prompting for user credentials validating them.

Comments

Post a Comment

Popular posts from this blog

Top25 ASP.NET Interview Questions - FAQ | Crack the Interview Easily

-
Image
Complete MicrosoftDot Net Topics – PDF Download 1. What is ASP.Net? It is a framework developed by Microsoft on which we can develop new generation web sites using web forms(aspx), MVC, HTML, Javascript, CSS etc. Its successor of Microsoft Active Server Pages(ASP). Currently there is ASP.NET 4.0, which is used to develop web sites. There are various page extensions provided by Microsoft that are being used for web site development. Eg: aspx, asmx, ascx, ashx, cs, vb, html, XML etc. 2. What’s the use of Response.Output.Write()?  We can write formatted output  using Response.Output.Write(). 3. What is caching? Caching is a technique used to increase performance by keeping frequently accessed data or files in memory. The request for a cached file/data will be accessed from cache instead of actual location of that file. 4. What is Cross Page Posting? When we click submit button on a web page, the page post the data to the same page. The technique in wh
Read more

Top 5 Features of Entity Framework Version 7 Every Dot Net Developers Should Know

-
Image
Introduction: Entity Framework is an Object Relational Mapper (ORM) which is a type of tool that simplifies mapping between objects in your software to the tables and columns of a relational database. Latest Updated Complete ASP.NET MVC Course Content - Free PDF Link  EF is an open source ORM framework for ADO.NET which is a part of .NET Framework. Initially, Entity framework came with less features and some functionality. There were continuous changes made in the Entity framework as a result. EF has become more popular and comes with lots of new features in every release. Checkout the Entity Framework Version 7 Features below, Lightweight and extensible New Data Stores Unique Constraints New Platforms Shadow Properties Here we are going to discuss about New Features of Entity Framework 7 Lightweight and Extensible : In entity Framework 7 You can use only that extensions which are useful to your project. But the  concepts are same as EF als
Read more

Top 100 Microsoft Dot Net Interview Questions with Answers

-
1. What is C-Sharp (C#)? C# is a type-safe, managed and object oriented language, which is compiled by .Net framework for generating intermediate language (IL). 2. Explain the types of comments in C#? Below are the types of comments in C# – -->Single Line Comment Eg : // -->Multiline Comments Eg: /* */ -->XML Comments Eg : /// 3. List out the differences between Array and ArrayList in C#? Array stores the values or elements of same data type but arraylist stores values of different datatypes. Arrays will use the fixed length but arraylist does not uses fixed length like array. 4. Why to use “using” in C#? “Using” statement calls – “dispose” method internally, whenever any exception occurred in any method call and in “Using” statement objects are read only and cannot be reassignable or modifiable. 5. What is ASP.Net? It is a framework developed by Microsoft on which we can develop new generation web sites using web forms(aspx), MVC, HT
Read more