Join Dotnetcodes is online Discussion Forum for Software professionals . It lets you find friends around the world and Create professional network that share similar interests as you. Get help on ur projects by industry specialists. Also get answers to all ur technical/placement related querries.Get an edge over others.
Already MemberClick here to login MVC Interview Questions Answers Interview Questions
Serial Number in SSRS Articles
Get Started Developing for Android Apps with Eclipse Articles
How to Print a Crystal Report direct to printer Articles
Razor View Engine Interview Questions Answers Interview Questions
.Net framework 4.0 Interview Questions Answers Interview Questions
SQL server reporting services Interview Questions (SSRS) part 1 Articles
Whats New in ASP.NET 4.0 Part 2 Articles
Difference between Encapsulation and Abstraction Interview Questions
Explaining SDLC -System Development Life Cycle Articles
SPIRE PDF Library Articles
Infosys Interview Questions Interview Questions
Html5 interview questions and answers Interview Questions
Dynamic Menu using HTML List Tag and CSS in ASP.Net Articles
SharePoint 2010 interview Questions Answers Interview Questions
Submit Articles | More Articles..

ASP.Net 4.0 Interview questions

Posted By: rakesh On:11/18/2010 11:59:56 PM in:Interview Questions Category:ASP.NET Hits:2433
List of ASP.Net 4.0 Interview questions

Q. What is new with ASP.Net 4 WebForms ?

Ans. Some of the Features are:

. Ability to Set Metatags.
. More control over view state.
. Added and Updated browser definition files.
. ASP.Net Routing.
. The ability to Persist Selected rows in data Control.
. More control over rendered HTML in FormView and ListView Controls.
. Filtering Support for datasource Controls.

Q. What is machine.config file and how do you use it in ASP.Net 4.0?

. Machine.Config file is found in the "CONFIG" subfolder of your .NET Framework install directory (c:\WINNT\.NET\Framework\{Version Number}\CONFIG on Windows 2000 installations). It contains configuration settings for machine-wide assembly binding, built-in remoting channels, and ASP.NET.

In .the NET Framework 4.0, the major configuration elements(that use to be in web.config) have been moved to the machine.config file, and the applications now inherit these settings. This allows the Web.config file in ASP.NET 4 applications either to be empty or to contain just the following lines.

Q. What is RedirectPermanent in ASP.Net 4.0?

Ans. In earlier Versions of .Net, Response.Redirect was used, which issues an HTTP 302 Found or temporary redirect response to the browser (meaning that asked resource is temporarily moved to other location) which inturn results in an extra HTTP round trip. ASP.NET 4.0 however, adds a new RedirectPermanent that Performs a permanent redirection from the requested URL to the specified URL. and returns 301 Moved Permanently responses.
e.g. RedirectPermanent("/newpath/foroldcontent.aspx");

Q. How will you specify what version of the framework your application is targeting?

 In Asp.Net 4 a new element "targetFramework" of compilation  (in Web.config file) lets you specify the framework version in the webconfig file as

<?xml version="1.0"?>
<compilation targetFramework="4.0" />

It only lets you  the .NET Framework 4.0 and later verisons.

Q. What is the use of MetaKeywords and MetaDescription properties.

 MetaKeywords and MetaDescription are the new properties added to the Page class of ASP.NET 4.0 Web Forms. The two properties are used to set the keywords and description meta tags in your page.
For e.g.
<meta name="keywords" content="These, are, my, keywords" />
<meta name="description" content="This is the description of my page" />

You can set these properties at run time, which lets you get the content from a database or other source, and which lets you set the tags dynamically to describe what a particular page is for.

You can also set the Keywords and Description properties in the @ Page directive at the top of the Web Forms page markup like,
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"
Inherits="_Default" Keywords="ASP,4.0,are keywords" Description="blah blah" %>

Q. What is  Ajax Library.

  Ajax Library is a client-only JavaScript library that is compatible with all modern browsers, including Internet Explorer,  Chrome, Apple Safari, and Mozilla Firefox.Because the  Ajax Library is a client-only JavaScript library, you can use the library with both ASP.NET Web Forms and ASP.NET MVC applications. You can also create Ajax pages that consist only of HTML.

Q. What are the Changes in CheckBoxList and RadioButtonList Control ?

 In ASP.NET 4, the CheckBoxList and RadioButtonList controls support two new values for the RepeatLayout property, OrderedList(The content is rendered as li elements within an ol element) and UnorderedList(The content is rendered as li elements within a ul element.)

Q. Whats Application Warm-Up Module?

 We can set-up a Warm-Up module for warming up your applications before they serve their first request.Instead of writing custom code, you specify the URLs of resources to execute before the Web application accepts requests from the network. This warm-up occurs during startup of the IIS service (if you configured the IIS application pool as AlwaysRunning) and when an IIS worker process recycles. During recycle, the old IIS worker process continues to execute requests until the newly spawned worker process is fully warmed up, so that applications experience no interruptions or other issues due to unprimed caches.

comments powered by Disqus
User Profile
Rakesh Sinha
Sr. Technical Lead
New Delhi , India
Email :You must Log In to access the contact details.
Latest Post from :rakesh
Which party you want to vote in Loksabha elections 2019?
View: 692 | Submitted on: 10/12/2018 5:59:06 PM
Response.Redirect vs Server.Transfer
View: 484 | Submitted on: 12/27/2015 2:26:38 PM
The test form is only available for requests from the local machine.
View: 716 | Submitted on: 11/3/2015 9:54:36 PM
Difference between web service WCF and Web API
View: 7677 | Submitted on: 10/28/2015 9:23:51 PM
Which party you want to vote in Delhi assembly elections 2015?
View: 1907 | Submitted on: 12/18/2014 4:19:24 AM
Submit Articles | All Post of This User..

All rights reserved to dotnetcodes. Logos, company names used here if any are only for reference purposes and they may be respective owner's right or trademarks.
Best viewed at 1024 x 768 resolution with Internet Explorer 5.0 or Mozila Firefox 3.5 or Google Crome and higher