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Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 Sample Questions:
1. You are designing a Windows Presentation Foundation (WPF) application. The WPF application displays indicators to compare your company's past performance to the current day's operationsdata.
The WPF application accesses historic data from your company's data warehouse through a Web service, and accesses current data directly from a Microsoft SQL Server 2008 database.
The WPF application must meet the following requirements:
- Retrieve historic data from the data warehouse at application startup and then once per day.
- Retrieve current data from the database every five minutes, and then update the
indicators.
- Cache all retrieveddata.
- Target the .NET Framework 4 Client Profile.
You need to recommend an approach to data caching.
What should you recommend?
A) UseSystem.Web.Caching with an absolute expiration.
B) Use System.Runtime.Caching with an absolute expiration.
C) Use System.Runtime.Caching with a sliding expiration.
D) UseSystem.Web.Caching with a sliding expiration.
2. You are designing an n-tier Windows solution that includes a data entry application. The solution uses Microsoft .NET Framework 4 and Microsoft SQL Server 2008.
The data entry application sends customer orders to a middle-tier server. The middle-tier server sends orders to a set of services that perform operations on the orders. Business rules determine which services to call and whether to run them in sequence or in parallel. The business rules are complex and data dependent.
The Windows solution must meet the following requirements:
- Optimize application performance by using dynamic load balancing. - Allow for business rules to be changed at runtime.
You need to recommend an approach that meets the requirements.
What should you recommend?
A) Private message queues with a controller class on the middle-tier server
B) A routed service that uses Windows Communication Foundation (WCF) messaging
C) A Windows Communication Foundation (WCF) service for each operation, with a controller class on the middle-tier server
D) SQL Server stored procedures
3. You are creating a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application will consist of several data entry forms. Each data entry form requires a user to enter phone numbers and addresses.
You need to design a solution that promotes code reusability.
What should you do?
A) Add multiple text boxes for each data entry form.
B) Create a new merged resource dictionary and reference it from each data entry form.
C) Use the same style resource for each data entry form.
D) Create a new user control and reference it on each data entry form.
4. 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 and error messages in a SqlException object.
B) Retrieve informational messages and error messages by creating a handler for the InfoMessage event.
C) Retrieve informational messages in a SqlException object. Retrieve error messages by creating a handler for the InfoMessage event.
D) Retrieve informational messages by creating a handler for the InfoMessage event. Retrieve error messages in a SqlException object.
5. You are designing a .NET Framework 4 solution that contains a Windows Presentation Foundation (WPF) application and a Windows Communication Framework (WCF) Web service.
The WPF application will be deployed to users1 desktops located in the company's corporate network. The WCF Web service will be deployed to a Web farm located in the company's perimeter network. The firewall between the perimeter network and the Internet allows only HTTP and HTTPS traffiC.
You need to recommend an approach for minimizing the attack surface of the WCF Web service.
What should you recommend?
A) Set up an SSL certificate on the server.
B) Add a load-balancing router to the Web farm configuration.
C) Configure a WCF endpoint to use the NetTcpBinding binding.
D) Configure a WCF endpoint to use the basicHttpBinding binding.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: B | Question # 3 Answer: D | Question # 4 Answer: D | Question # 5 Answer: C |




