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

1. You are designing a data access service backed by Microsoft SQL Server. Other developers will use your service as a third-party service.
You have the following requirements:
You need to design the service to meet the requirements.
Which approach should you recommend?

A) Use an ASP.NET Web service
B) Use a WCF service with multiple bindings
C) Use an .ashx file to return an XML response over HTTPS
D) Use SQL Server XML Web services

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

3. You are designing an ASP.NET MVC 2 Web application. A page of the Web application will display data retrieved from a Web service.
The Web service performance is unpredictable.
You have the following requirements:
Display a progress indicator while retrieving data.
Display data in the same page from which it is retrieved.
You need to recommend a solution that meets the requirements.
What are two possible solutions you could recommend? (Each answer presents a complete solution. Choose two.)

A) Use the jQuery.ajax() function.
B) In the view, set the Page directive Async attribute to true.
C) Use the Ajax.BeginForm() method.
D) Derive the controller from the AsyncController class.

4. You are designing an ASP.NET MVC 2 Web application. The Web application will display information from remote third-party Windows Communication Foundation (WCF) services on each page.
You have the following requirements:
Retrieve information from the WCF services.
Specify a timeout period while retrieving information from third-party services.
Cache responses from the third-party services for retrieval by multiple users.
You need to recommend an approach for retrieving information from the WCF service.
What should you recommend?

A) Implement the IAsyncResult interface on the models for the views.
B) Implement the IHttpAsyncHandler interface on the models for the views.
C) Use an asynchronous method.
D) Use AJAX to asynchronously call the third-party services and display information.

5. You need to design an exception-handling strategy for the Web application.
Which approach should you recommend?

A) Add a customErrors section in the configuration file, with mode="RemoteOnly" and defauftRedirect='/error.aspx".
B) Catch all unhandled exceptions in the Application_Error event of the Global.asax file, send an e-mail message containing the exception details, clear all errors, and redirect the user to a generic error page.
C) Add a customErrors section in the configuration file, with mode="On" and default Redirect="/error.aspx".
D) Catch all unhandled exceptions in the Page_Error event of each page, send an e-mail message containing the exception details, clear all errors, and redirect the user to a generic error page.

Solutions: