Define the following terms:

1. LINQ to SQL

2. LINQ to objects

                         1 Mark
                Learning     Outcome(s):
Understand the main elements of     portals development.
 
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      Question Two

2-Inactive user (anonymous user) data creates big challenges for Ajax web portal. List the steps use to cleanup this data.

       1 Mark
             Learning     Outcome(s):
Understand the main elements of     portals development
 
 
 
 
 
      Question Three

3-In Web portal, when a page executes on the server-side, Slowness can occur when a page loads due widgets executing simultaneously. This makes the first-time visit, future visits, and tab switching slower. In your own words, how this slowness can be reduced?

       1 Mark
             Learning     Outcome(s):
Understand the main elements of     portals development
 
 
 
 
 
      Question Four

4-Content proxy is a web service on your server that can fetch data from external URLs and return it to the browser. How does the proxy improve the load time for users?