You create a Windows application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application interacts with several processes and services on the same server and uses CPU-intensive computations.
The application is deployed to all desktop computers on a local network.
One user reports that the application takes too long to respond and sometimes freezes during an operation.
You need to gather information about the current behavior of all components and the operating system.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. You plan to deploy the application.
The .NET Framework 3.5 is not installed on all client computers.
You need to deploy the application only on client computers that have the .NET Framework 3.5 installed.
What should you do?

You are designing a component for a Windows Forms application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The component will process a long-running business transaction. You plan to provide the status of completion of the transaction to the users.
You need to ensure that the application displays a progress bar that reports the percentage of completion of the transaction.
You need to achieve this goal without using the polling method.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application must use a local data store to support those applications that connect occasionally.
You need to ensure that the local data store meets the following requirements:
– It does not create additional services on client computers.
– It provides synchronization capabilities to other data stores.
Which local data store should you use?

You create a logging utility class by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. The class writes logs to event log services.
You need to ensure that the client applications that use the class can create an instance of the class only if they have permissions to write to the event log services. What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application includes a set of Windows Communication Foundation (WCF) services to authorize and settle credit card transactions.
A separate service is implemented for each credit card provider. However, the same service contracts and data contracts are used across all implementations.
The incoming requests to the service must conform to the contracts.
You need to implement validation to meet the requirement by using a minimum amount of development effort.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application connects to a Microsoft SQL Server 2005 database by using LINQ to SQL. The database contains a table named MarketTransaction.
The MarketTransaction records must be validated against certain business rules before they are added to or updated in the database.
You need to design a validation strategy for the MarketTransaction records. You also need to ensure that the schema changes do not affect the validation code.
What should you do?

You are creating multiple enterprise applications by using the .NET Framework 3.5. All the applications will be deployed on a single computer.
You purchase a COM component from a third-party vendor. You plan to reuse a specific functionality of the component in the applications.
The COM component will be used by 25 developers who work on different applications.
You need to ensure that the types referenced in the COM component are compatible among the developers.
What should you do?

You create an ASP.NET application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
You need to ensure that the application meets the following requirements:
– Logs all the Web requests before authentication occurs
– Logging is performed for all types of requests
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. The application contains the following components:
– A business tier component
– A data access tier component
– A Microsoft SQL Server database
The database stores sales order data. You plan to design a validation strategy that meets the following requirements:
– For each order, the ship date must be greater than the order date.
– Validation errors must be detected as early as possible.
– Validation must be enforced regardless of which applications or application components modify the order data.
You need to ensure that the validation strategy meets the specified requirements. Which two actions should you perform?
(Each correct answer presents part of the solution. Choose two.)