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

1. You are designing an ASP.NET Web application that allows users to type a value in a text box
The application must function with JavaScript disabled.
You need to design a method for using a Web service to validate the user-typed value before the form is processed.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Use an OnServerValidate method.
B) Use a CustomValidator control.
C) Use a ClientValidationFunction method.
D) Use a DynamicValidator control.

2. 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) Decorate the Custom Management Page class with the Principal Permission attribute, demanding access for the Admin role.
C) Override the On Load event of the Custom Page class, and then check whether the user has access.
D) Override the OnInit event of the Custom Page class, and then check whether the user has access.

3. You are designing an ASP.NET Web Forms application that uses a database containing user names and hashed passwords for authentication.
The Web application includes a login form in which users type their user names and passwords.
You need to design a strategy to ensure that the user's login credentials cannot be stolen through a man-in-the- middle attack.
Which approach should you recommend?

A) Write an on Submit JavaScript handler that URL-encodes the password before the password is passed to the server.
B) Write an on Submit JavaScript handler that hashes the password before the password is submitted to the server.
C) Write an On Click method for the Submit button that hashes the password before the password is compared with the password value that is stored in the database.
D) Install a certificate on the Web server, and force the login form to use SSL.

4. You have an ASP.NET Web Forms application for processing orders.
Many users of the application submit their order forms multiple times due to incorrectly formatted credit card information.
You need to plan for validation of the length and format of data in the credit card field on the client side prior to processing each transaction.
Which approach should you recommend?

A) Use a RequiredFieldValidator control and a Comparevalfdator control.
B) Use a CustomValidator control in the OnServerValidate method.
C) Use a CustomValidator control in the Page_Load method.
D) Use a RequiredFieldValidator control and a RegularExpressionValidator control.

5. You need to recommend appropriate technologies for designing Web forms for entry and retrieval of news items.
Which technologies should you recommend? (Each correct answer presents a complete solution. Choose two.)

A) Entity Framework and Microsoft Silverlight
B) ASP.NET MVC 2 and Microsoft AJAX
C) ASMX and SOAP
D) WCF Data Services and jQuery

Solutions: