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

1. You need to ensure that unauthorized users do not have access to the administration pages
Which approach should you recommend?

A) Check whether the user has access in the Page_Load method of every administration page by using the User, lslnRole("Admin") method.
B) Override the On Load event of the Custom Page class, and then check whether the user has access.
C) Decorate the Custom Management Page class with the Principal Permission attribute, demanding access for the Admin role.
D) Override the OnInit event of the Custom Page class, and then check whether the user has access.

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

3. You are supporting an ASP.NET Web application.
The Web application occasionally shuts down unexpectedly in the production environment.
You cannot reproduce the problem in your local environment.
You need to design a strategy to ensure that you can immediately diagnose the problem without affecting the performance of the production environment.
Which approach should you recommend?

A) Use remote debugging against the hosting Web server process.
B) Use ASP.NET health monitoring.
C) Use local debugging against the hosting Web server process.
D) Use ASP.NET tracing.

4. You are conducting an architectural review of an existing ASP.NET Web application. The Web application uses only full-page postbacks, which degrades its performance.
You have the following requirements:
Extend existing controls by using AJAX functionality.
Reduce the size of postbacks without modifying the existing controls.
You need to recommend an approach for meeting the requirements.
What should you recommend?

A) Create a server control derived from the Substitution class.
B) Create a user control that implements the IExtenderProvider interface.
C) Create a server control derived from the ExtenderControl class.
D) Create a user control that implements the IAsyncActionlnvoker interface.

5. You have a Web application that has been migrated from ASP.NET 3.5 to ASP.NET 4.
While testing the migrated Web application, developers notice that the non-input Web controls with the property Enabled="false" are rendering as enabled.
You need to ensure that the controls in the migrated Web application render correctly, and that other Web applications hosted on the same Web server are not affected by the solution.
Which approach should you recommend?

A) Use the controls element of the pages section of the machine.config file.
B) Use the controlRenderingCompatibilityVersion element of the pages section of the machine.config file.
C) Use the controls element of the pages section of the migrated application's web.config file.
D) Use the controlRenderingCompatibilityVersion element of the pages section of the migrated application's web.config file.

Solutions: