1.what is the difference between DB server and Report Server?
The report server is the central component of a Reporting Services installation. It consists of a pair of core processors plus a collection of special-purpose extensions that handle authentication, data processing, rendering, and delivery operations. Processors are the hub of the report server.
Report Manager is an ASP.NET web application that provides report management/viewing capabilities for a Reporting Services instance configured in native mode.
The configuration settings of Report Manager and the Report Server Web service are stored in a single configuration file (rsreportserver.config).
You can also use "Reporting Services Configuration Manager" to configure settings for Report Server and Report Manager.
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