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

1. You are designing a class library that will be used by all of your company's ASP.NET Web applications. A specific variable in a helper class within the library holds very sensitive information. You need to ensure that the variable is not visible to developers when they are debugging any of the Web applications.
Which two actions should you recommend (Each correct answer presents part of the solution. Choose two.)

A) Make the variable private
B) Use the Debugger Display attribute
C) Use the Debugger Brows able attribute
D) Make the variable protected

2. You are modifying an existing ASP.NET Web application. Each page of the Web application includes a navigation bar and a print button.
You have the following requirements:
You need to recommend an approach that meets the requirements.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Add an OnClientClick event handler to the print button to call the window.print() function.
B) Add the PrintingPermission attribute to the code-behind page class.
C) In the header, add a style sheet tag that sets the media attribute to print.
D) Add an Onclick event handler to the print button to set the Response.ContentType property to style/print.

3. 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 session state.
D) Use the application cache.

4. 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) 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.
C) 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.
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.

5. You are redesigning an existing three-tier ASP.NET Web application that is deployed to a Web server, an application server, and a database server that runs Microsoft SQL Server 2008.
Usage has increased significantly. The application has become slow and occasionally times out.
Health monitoring logs indicate that the data access logic on the application server is consuming the majority of the CPU resources.
You need to recommend an approach for addressing the scalability and reliability issues.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Move the Web tier to a Web farm.
B) Move the application tier to a Web farm.
C) Partition the tables and indexes in the database.
D) Use a clustered database server configuration.

Solutions: