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Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 Sample Questions:

1. You are designing a Windows Forms application. The application connects to a Microsoft SQL Server 2008 database.
You need to recommend an approach for retrieving and logging all informational messages and error messages reported by the database.
What should you recommend?

A) Retrieve informational messages by creating a handler for the InfoMessage event. Retrieve error messages in a SqlException object.
B) Retrieve informational messages and error messages in a SqlException object.
C) Retrieve informational messages in a SqlException object. Retrieve error messages by creating a handler for the InfoMessage event.
D) Retrieve informational messages and error messages by creating a handler for the InfoMessage event.

2. You are designing a Windows Presentation Foundation (WPF) client application that requests reports from a Windows Communication Foundation (WCF) Web service.
Users must be able to perform other tasks while the WCF Web service generates the report.
You need to recommend a message exchange pattern for the communication between the WPF application and the WCF Web service.
What are two possible message exchange patterns that will meet the requirements? (Each correct answer presents a complete solution, Choose two.)

A) Duplex
B) Datagram with session
C) Datagram without session
D) Request-Response

3. You are designing a Windows Presentation Foundation (WPF) application for your company by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The business layer of the application is implemented by using Windows Communication Foundation (WCF).
You plan to support non-repudiation and data integrity for WCF messages.
You need to design the security strategy for the application.
What should you do?

A) Encrypt the WCF messages by using the Secure Sockets Layer (SSL) protocol.
B) Implement message-level security by using digital certificates as client computer credentials.
C) Attach a digital signature to the WCF messages.
D) Encrypt the WCF messages by using the Internet Protocol Security (IPSec) protocol.

4. You are designing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You plan to design an instrumentation strategy for the application.
You need to ensure that the strategy meets the following requirements:
- Captures detailed performance information. - Enables or disables diagnostic messages by using an application configuration option without requiring the application to restart.
What should you design?

A) A custom performance counter
B) An override to the EventLog class
C) A custom trace listener
D) An override to the Debug class

5. You are developing a Windows application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008.
New features that require changes to be made to the database schema are added to the application every week.
You need to ensure that the changes made to the database schema do not require the application to be recompiled.
Which two actions should you perform? (Each correct answer presents part of the solution.
Choose two.)

A) Build a storage model and use it to access data from the business entities.
B) Modify the conceptual schema xml file when the schema changes occur.
C) Modify the xml mapping file when the schema changes occur.
D) Build a conceptual model and use it to access data from the business entities.

Solutions: