Does a downloaded Silverlight application still communicate with the web server?

[SuiHuang]

Hi Experts:

    I am working on a Silverlight web application using ESRI Silverlight API to connect with ArcGIS server map service. The web server hosting the Silverlight XAP file and the server hosting the ArcGIS server map service are different servers.
    I want to ask, when the Silverlight application (downloaded to the client) do queries to the map services (or displaying maps), is it retrieving data directly from the ArcGIS Server map service's server? or the data goes through the web server hosting the xap file for download?
    This is important for me because currently I can test the connection speed to the web server, and I want to see whether it is relevant to the performance of using the ArcGIS Server map service.
    Thank you!

[GarimaVyas]

The web server only hosts the application which is downloaded by the browser and run by Silverlight plugin in the browser. Actual communication will be between the web browser (of the client machine) and the ArcGIS Server. All the requests will be generated from client machine to ArcGIS Server machine.

[SuiHuang]

Thank you!