AJAX.NET Interview questions

Total available count: 15
Subject - Microsoft Technologies
Subsubject - AJAX.NET

What are the new features of ASP.NET AJAX 4.0?

The new features of ASP.NET AJAX 4.0 are as follows,
1. Support for declarative instantiation of client components
2. Support for invoking ADO.NET data services and data contexts
3. Support for using the observer pattern on JavaScript objects and arrays
4. Support for live data binding
5. Support for the Data View control
6. Support for client-side template rendering

Next 5 interview question(s)

Explain the UpdatePanel control?
Explain about the Timer control in AJAX.NET?
What is the purpose of the ScriptManagerProxy control?
Is it possible to use multiple ScriptManager controls on a Web page?
Why ScriptManager is required in AJAX.NET?