You are creating a class that uses unmanaged resources. This class maintains references to managed resources on other objects. You need to ensure that users of this class can explicitly release resources when the class instance ceases to be needed. Which three actions should you perform? (Each correct answer presents part of the solution. Choose three.)

You create Web-based client applications. You are creating a page for a Web-based application.
You must ensure that the page meets the following requirements:

Uses forms authentication to validate users.
Deploys on a single Web server.
Is highly secure.
Gives higher priority to security than speed.

You need to recommend a configuration setting for your page. Which configuration setting should you choose?

You create Web-based client applications. You deploy an application for a company. The application enables customers to access mobile phone invoices. Users report that the application fails to respond and time-outs occur. You test the application and find that the reports are valid. You need to identify the cause of the problem. Which analysis strategy should you use?

You create Web-based client applications. You are reviewing a Web application page that populates a list of all employees of your company. You analyze code and find that the Web application page does not prevent exceptions from traveling to the browser. You need to ensure that the Web application page intercepts exceptions and presents an error message to the browser. What change should you suggest?

You are using the Microsoft Visual Studio 2005 IDE to examine the output of
a method that returns a string. You assign the output of the method to a string variable named fName.

You need to write a code segment that prints the following on a single line

The message: “Test Failed: “
The value of fName if the value of fName does not equal “John”

You also need to ensure that the code segment simultaneously facilitates uninterrupted execution of the application. Which code segment should you use?

You are developing an application that will deploy by using ClickOnce. You need to test if the application executes properly. You need to write a method that returns the object, which prompts the user to install a ClickOnce application. Which code segment should you use?

You are developing an auditing application to display the trusted ClickOnce applications that are installed on a computer. You need the auditing application to display the origin of each trusted application. Which code segment should you use?

You are developing a custom-collection class. You need to create a method in your class. You need to ensure that the method you create in your class returns a type that is compatible with the Foreach statement. Which criterion should the method meet?

You create Web-based client applications. You are creating an ASP.NET intranet site. The site permits individual departments to post content without involving the Central Information Technology resources. The site also permits Central Information Technology to maintain control over the intranet as a whole. Each department wants complete control over the appearance and behavior of their departmental content. However, Information Technology directives require every page on the intranet to maintain a consistent appearance and behavior. You need to develop the Web page on the intranet site so that it meets the requirements. What should you do?

You create Web-based client applications. You are creating a Web control that includes data entry fields. The Web control also includes data validation code. The data validation code verifies whether the user has entered a valid date and a valid postal code in a text box. You are writing the code within the Web control to handle the invalid data. The Web control must work on as many browsers as possible. You need to design an appropriate feedback technique. What should you do?