.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
 
Sign In
Register
 
Win Surprise Gifts!!!
Congratulations!!!


Top 5 Contributors of the Month
david stephan

Home >> Interview Question >> ASP.Net >> Post New Question Subscribe to Interview Questions

What is the difference between Application caching and session objects?

Posted By :Sunil Yadav     Posted Date :May 26, 2010    Points :10   Category :ASP.Net 
Session A session is the time for which a particular user interacts with a web application. During a session the unique identity of the user is maintained internally. A session ends if there is a session timeout or user ends sessionby logging out.Sessions may change from user to user.

Cache Caching can be used to temporarily store page output or application data either on the client or on the server, which can then be re-used to satisfy subsequent requests and thus avoid the overhead of re-creating the same information.Caching is particularly suitable when you expect to Cache will be applicable to the entire application through out it's life cycle return the same information in the same format for many different requests.

Application Its nothing but similar to Session with a bit difference that is Session objects have scope within a particular session while application objects having scope within entire application. Application are accessible only from code running within the context of the originating application. Other applications running on the system cannot access or modify the values.


You can also find related Interview Question to What is the difference between Application caching and session objects?  below: 

What is the difference between ViewState,Application and Session of a Page?

  
View State:

- View state is maintained in page level only.
- View state of one page is not visible in another page.
- View state information stored in client only.
- View state persist the values of particular page in the client (browser) when post back operation done.
- View state used to persist page-instance-specific data. (Read more)

Session State:

- Session state is maintained in session level.
- Session state value is available in all pages within a user session.
- Session state information stored in server.
- Session state persist the data of particular user in the server. This data available till user close the browser or session time completes.
- Session state used to persist the user-specific data on the server side. (Read more)

Application State

ApplicationState is a variable you can store values in during the life off the application (may get cycled periodically, and without your knowledge) (used less-frequently)


Usage

- If you want to access the information on different web pages, you can use SessionState
- If you want to access from the same page, then you can use Viewstate
-Application State it's global, for all users

Security

Session state provides more security when compared with view state as the data value is stored in server side (More...)

Differences between application and session.

  
The session object maintains state on a per client basis whereas the application object is on a per application basis and is consistent across all client requests. (More...)

what is different between session and application

  
session is a object that store information between http request for a paticular user.
->But application object are global for each user (More...)

What is the difference between Session.Abandon() and Session.Clear()?

  
The major practical difference is that if you call Session.Abandon(), Session_End will be fired (for InProc mode), and in the next request, Session_Start will be fired. Session.Clear( ) just clears the session data without killing it.

Ragards
Santosh
http://santoshdotnetarena.blogspot.com/ (More...)

Which typically consumes more memory: application state or session state?

  
Session state tends to use much more memory than application state, because copies of all variables are stored for each user. (More...)

Which might not work if a user has disabled cookies in his or her Web browser: application state or session state?

  
Session state, by default, won't work if a Web browser that supports cookies has cookies disabled. Application state isn't user-specific, though, and doesn't need to be tracked in cookies. Therefore, application state works regardless of cookies. (More...)

Which typically consumes more memory: application state or session state?

  
Session state tends to use much more memory than application state, because copies of all variables are stored for each user. (More...)

Which might not work if a user has disabled cookies in his or her Web browser: application state or session state?

  
Session state, by default, won't work if a Web browser that supports cookies has cookies disabled. Application state isn't user-specific, though, and doesn't need to be tracked in cookies. Therefore, application state works regardless of cookies (More...)

What is the difference between Session.Clear() and Session.RemoveAll() method?

  
Well, actually there is no difference. Session.RemoveAll() methods internally makes a call to Clear() method only.

Thanks. (More...)

What is difference between System.Web.Caching.Cache and System.Web.HttpContext.Current.Cache ?

  
System.Web.Caching.Cache : Class/type used for caching
System.Web.HttoContect.Current.Cache : The instance of cache class for current HTTP context from a web request (Gets cache object from current application domain) (More...)

What is the difference between Session.Abandon() and Session.Clear()?

  
Session.Abandon() will end current session by firing Session_End and in the next request, Session_Start will be fire.

Session.Clear( ) just clears the session data without killing it. With session.clear variable is not removed from memory it just like giving value null to this session.

Session ID will remain same in both cases, as long as the browser is not closed. (More...)

what is session ,cache, cookie, application memory timeout?

  

Session timeout: 20 min
Cache timeout: duration we have to specify.
Cookie: for in memory cookie till browser opened
For persistent cookie timeout is till expires property's time .
Application memory timeout: till appdomain exist (More...)

what is difference between inprocess and outprocess session?

  

Inprocess session will be created within appdomain.
Outprocess session will be created outside the worker process. (More...)

What is a SPSite and SPWeb object, and what is the difference between each of the objects?

  
The SPSite object represents a collection of sites (site collection [a top level site and all its subsites]). The SPWeb object represents an instance SharePoint Web, and SPWeb object contains things like the actual content. A SPSite object contains the various subsites and the information regarding them.
(More...)

Quick Links For Interview Questions Categories:
ASP.Net Windows Application   .NET Framework   C#   VB.Net   ADO.Net  
Sql Server   SharePoint   Silverlight   OOPs   JQuery   JavaScript/VBScript
Biztalk Patten/Practices .IIS WCF WPF WWF
Networking Aptitude Others   All      

Find questions, FAQ's and their answers related to .NET, C#, Vb.Net, Sql Server and many more.

 
Now you can find lots of .NET, C#, Vb.Net, SQL Server,Windows, ASP.Net related Questions and their Answers here at www.dotnetspark.com. Our aim is to help you pass your certification Exams (MCP, MCSD, MCAD etc.,) with flying scores and get good name in your company.

So, Start looking our Interview Question section daily and improve your .NET Skills. You can also help others by posting Interview Questions and their Answers in this section.


Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend