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Microsoft Designing & Developing Web Apps Using MS .NET Frmwk 4 Sample Questions:

1. An ASP.NET Web application connects to a Microsoft SQL Server 2008 database. Multiple users access the database. The Web.config file includes a database connection string. The Web application uses Windows authentication and impersonation. Anonymous access is turned off.
You need to recommend an approach for pooling database connections between users.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Explicitly close connections.
B) Do not explicitly close connections.
C) In the connection string, set the Integrated Security parameter to true.
D) In the connection string, specify a user name and password.

2. You are designing an ASP.NET MVC 2 Web application.
The Web application must meet the following requirements:
You need to recommend an approach for validating user input.
What should you recommend?

A) Use ASP.NET validation server controls. Call the Html.EnableClientValidation() method.
B) Add DataAnnotations attributes to each property in the Customer class. Associate all rendered elements with a validation group.
C) Use only strongly typed HTML helpers. Call the Html.ValidationMessageFor() method for each property in the Customer class.
D) Add DataAnnotations attributes to each property in the Customer class. Call the Html.EnableClientValidation() method.

3. You need to design a solution for calling a server-side method of the code-behind file from JavaScript.
Which approach should you recommend?

A) Use an Update Progress control.
B) Configure the server-side method to return a JsonResult.
C) Use an Update Panel control.
D) Use Page Methods.

4. You are designing an ASP.NET Web application for online image editing.
Users can upload images to the Web application and edit those images by using utilities provided by the application. Some utilities are processor intensive and should be offloaded to a Graphics Processing Unit (GPU). Other utilities require the use of proprietary algorithms that must be performed on the server.
You need to design a solution for minimizing bandwidth usage and Web server response times during image processing, while providing a responsive application.
Which two approaches should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Perform server-side image processing on the Web server
B) Perform client-side image processing by using Microsoft Silver light.
C) Perform server-side image processing on a dedicated server.
D) Perform client-side image processing by using ASP.NET AJAX.

5. You are designing a plan to scale an ASP.NET Web application to support up to 20,000 concurrent users.
Application usage statistics indicate that many queries against the database retrieve data that does not change frequently.
You need to reduce database round trips for static data.
Which approach should you recommend?

A) Use SQL Server replication.
B) Use multiple active result sets.
C) Use the application cache.
D) Use session state.

Solutions: