You are an enterprise application developer. You are creating an application that has a business object named Product. The application also includes a Windows form along with a ComboBox control. You plan to display the Name property of the Product object in the ComboBox control. An application workflow allows the user to add new Product objects. You need to recommend an appropriate data structure for the Product objects. You also need to ensure that when a new Product object is added, the data structure provides notifications to update the ComboBox control automatically. Which data structure should you recommend?

You are an enterprise application developer. An existing Smart Client timesheet application stores entries in a local Microsoft SQL Server database. An ASP.NET application implements the same functionality and stores entries in a corporate SQL Server database. You plan to synchronize the locally stored timesheet data with the corporate database whenever the Smart Client application is online. You make the following changes to the database schema: Add a timestamp column to the existing time entry table.Add a table named history. You need to ensure that your deployment strategy enables the Smart Client application to synchronize the existing time entries. What should you do?

You are an enterprise application developer. You are designing an event logging mechanism for a multi-tiered application. You need to ensure that the event logging mechanism meets the following requirements:
* Event data is available for at least three years.
* Event data is accessible through a central location.
* Access to event data is controlled for different types of events and users.
* The development effort is minimized.

Which two actions should you perform? (Each answer presents part of the solution. Choose two.)

You are an enterprise application developer. You develop an application by using Microsoft Visual Studio .NET 2005 and .NET Framework 2.0. The application will be used to track the tasks. The application has the following requirements: Any user must be able to suggest new tasks.Managers must be able to schedule or reject suggested tasks.Resources must be able to update the task progress.Managers must be able to cancel an uncompleted task at any point of time. You need to design a state diagram for the application to meet the specified requirements.
Which state diagram should you design?

You are an enterprise application developer. You are designing an event logging mechanism for a Web service. The Web service will be hosted on a Web farm. Your company policy specifies that all events for a component must be stored in a secure location. You need to design the event logging storage strategy to comply with the company policy.
Which storage mechanism should you use?

You are an enterprise application developer. An ASP.NET application accesses a Microsoft SQL Server database. You discover that the application intermittently logs the following exception:
“System.InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.”
You need to identify an appropriate performance counter to ascertain that the exception is caused by the leaking connections.
Which performance counter should you monitor?

You are an enterprise application developer. You are modifying an existing component that communicates with a single vendor. You need to ensure that the design meets the following requirements:
* Supports multiple vendors.
* Supports common business rules that are applicable to all vendors.
* Supports rules that are specific to each vendor.Supports addition of new vendors easily.

What should you do?

You are an enterprise application developer. You are developing a Web service. The service will be consumed by client applications that are built on the .NET and other platforms. The Web service will return a collection to the client applications. You need to ensure that the client applications can consume the collection. You want to achieve this goal by using the minimum amount of development effort.
What should you do?

You are an enterprise application developer. You have created an ASP.NET application. You need to create a unit test to test the Button1_Click event handler of an aspx page by using the minimum amount of code.
What should you do?

You are an enterprise application developer. You plan to evaluate the performance of an ASP.NET application. You review a performance monitoring log. You notice that the ASP.NET Worker Process Restarts performance counter shows a consistent measure over several days. However, the performance counter spikes unexpectedly at irregular intervals. You need to provide the following information: An explanation for the performance spike.A plan to ensure that the performance spike does not recur.
What should you do?