Microsoft Exam Questions

How can this be achieved?

DRAG DROP
There is an ASP.NET Web site PassGuideWS.
There is an ASP.NET Web application PassGuideApp.
There is an ASP.NET AJAX page PassGuidePage.
PassGuidePage has two DIV elements.
Considering content refreshing, each div element must be refreshed individually (the page
should not be refreshed).
How can this be achieved?

Answer:

Explanation: