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

2. 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 IHttpAsyncHandler interface on the models for the views.
B) Implement the IAsyncResult 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.

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

A) 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.
B) Add a customErrors section in the configuration file, with mode="RemoteOnly" and defauftRedirect='/error.aspx".
C) Add a customErrors section in the configuration file, with mode="On" and default Redirect="/error.aspx".
D) 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.

4. You need to design a solution for implementing holiday-specific site changes.
Which approach should you recommend?

A) Create one master page for each holiday. In each master page, reference the styles and images for the specific holiday.
B) For each holiday, create a theme that contains the related images and styles. Include a skin file, and reference the images within the master page with a SkinlD.
C) For each holiday, create a theme that contains the related images and styles. Include a skin file, and reference all images within the web application with a Skinl
D) Create a single master page, and change its images and styles dynamically in the code-behind file.

5. You are designing a monitoring plan for a multi-tier ASP.NET Web application. The Web application uses multiple Web servers and a database server. You plan to use a dedicated monitoring server.
You need to send an alert when any application server stops responding.
Which approach should you recommend?

A) Use AJAX to log user actions on each Web page to a database on the monitoring server. Run a process on the monitoring server that periodically checks the monitoring database and sends an alert if there is an interruption in Web page activity.
B) Run a process on each Web server that logs activity to a database on the monitoring server. Run a process on the monitoring server that periodically checks the monitoring database and sends an alert if any service stops logging.
C) Use Microsoft Message Queuing (MSMQ) to send a message to the monitoring server in the Load event of the Web application's master page. Run a process on the monitoring server that polls for MSMQ messages and sends an alert if any server stops sending messages.
D) Run a process on the monitoring server that periodically sends a request to each application service. Send an alert if a response is not received for any request.

Solutions:

Question # 1 Answer: A

Question # 2 Answer: C

Question # 3 Answer: D

Question # 4 Answer: C

Question # 5 Answer: D