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What are major built in Objects in asp.net ?

Posted By :Kirtan     Posted Date :June 30, 2010    Points :10   Category :ASP.Net 







You can also find related Interview Question to What are major built in Objects in asp.net ?  below: 

How many in built objects are there in ASP.net?

There are 6 objects.

1. Server
2. Session
3. Application
4. ObjectContext
5. Response
6. Request (More...)

Is it true that COM objects no longer need to be registered on the server?

Yes and No. Legacy COM objects still need to be registered on the server before they can be used. COM developed using the new .NET Framework will not need to be registered. Developers will be able to auto-register these objects just by placing them in the 'bin' folder of the application. (More...)

What are the major data structures used in RDBMS, Network data model & Hierarchical data model.

RDBMS - Array (i.e. Array of structures)
Network data model - Graph
Hierarchical data model - Trees (More...)

What is System R? What are its two major subsystems?

System R was designed and developed over a period of 1974-79 at IBM San Jose Research Center. It is a prototype and its purpose was to demonstrate that it is possible to build a Relational System that can be used in a real life environment to solve real life problems, with performance at least comparable to that of existing system.
Its two subsystems are
1.Research Storage
2.System Relational Data System. (More...)

Different Types of Remote Objects?

The remoting infrastructure allows you to create two distinct types of remote objects.

1.Client-activated objects - A client-activated object is a server-side object whose creation and destruction is controlled by the client application. An instance of the remote object is created when the client calls the new operator on the server object. This instance lives as long as the client needs it, and lives across one to many method calls. The object will be subject to garbage collection once it''s determined that no other clients need it.

2.Server-activated objects - A server-activated object''s lifetime is managed by the remote server, not the client that instantiates the object. This differs from the client-activated object, where the client governs when the object will be marked for finalization. It is important to understand that the server-activated objects are not created when a client calls New or Activator.GetObject. They are rather created when the client actually invokes a method on the proxy. There are two types of server activated objects. They are:

I. Single call . Single-call objects handle one, and only one, request coming from a client. When the client calls a method on a single call object, the object constructs itself, performs whatever action the method calls for, and the object is then subject to garbage collection. No state is held between calls, and each call (no matter what client it came from) is called on a new object instance.

II.Singleton - The difference in a singleton and single call lies in lifetime management. While single-call objects are stateless in nature, singletons are stateful objects, meaning that they can be used to retain state across multiple method calls. A singleton object instance serves multiple clients, allowing those clients to share data among themselves. (More...)

Describe ways of cleaning up objects.

The run time will maintain a service called as garbage collector.
this service will take care of deallocating memory corresponding to
objects.it works as a thread with least priority.when application
demenads for memory the runtime will take care of setting the high
priority for the garbage collector,so that it will be called for execution
and memory will be released.the programmer can make a call
to garbage colector by using GC class in system name space. (More...)

Can I use COM objects from a .NET Framework program?


Any COM component you have deployed today can be used from managed code, and in common cases the adaptation is totally automatic.
Specifically, COM components are accessed from the .NET Framework by use of a runtime callable wrapper (RCW). This wrapper turns the COM interfaces exposed by the COM component into .NET Framework-compatible interfaces. For OLE automation interfaces, the RCW can be generated automatically from a type library. For non-OLE automation interfaces, a developer may write a custom RCW and manually map the types exposed by the COM interface to .NET Framework-compatible types.

Shashi Ray (More...)


Application, Request, Response, server and session (More...)

How many ViewState objects can be created on an aspx page ?

There is no limit. You can have any number of ViewState object on single aspx page. However more Viewstate objects, more slowly it loads. (More...)

When to dispose SPWeb and SPSite objects sharepoint?

You should always dispose SPWeb and SPSite objects in sharepoint if you created them yourself, otherwise not. (More...)

What are the built in ways to backup a SharePoint install?

Using central administration and the stsadm command you can take backup (More...)

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