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Microsoft 070-518 Exam Syllabus Topics:

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

Question 1

You are designing a distributed application that will be deployed to 5,000 users worldwide.
Servers on five continents will host the Web services and the Microsoft SQL Server 2008
databases that support the application.
You have the following requirements:
---
Collect information about all errors associated with the application.
Store and view all error information in a centralized location.
Minimize the network bandwidth required for the transfer of error information.
You need to recommend a strategy for reporting error information. Which strategy should you recommend?

A. Write error messages to the event logs on the local computers. Use Windows Error Reporting to view the error information.
B. Write error messages to the SQL Server databases. Synchronize the databases by using merge replication.
C. Write error messages to the SQL Server databases. Synchronize the databases by using transactional replication.
D. Write error messages to the event logs on the local computers. Use Windows Management Instrumentation (WMI) to view the error information.

Question 2

You are designing a Windows Presentation Foundation (WPF) client application from which
employees will access a Web service.
Business partners will access the Web service by using proprietary client applications.
You need to recommend a solution for ensuring the integrity of data in the system.
What should you recommend?

A. Implement data validation at the service layer and reject invalid datA.
B. Secure the Web service by using SSL.
C. Encrypt data while storing it in the database.
D. Implement data validation on the client and reject invalid datA.

Question 3

You are designing a Windows Presentation Foundation (WPF) application.
The WPF application must run against either Microsoft SQL Server 2008 or a third-party
database system without duplicating data accesslogic.
You need to recommend a data access technology.
What should you recommend?

A. LINQ to SQL
B. ADO.NET using DataSet objects and SqlDataReader objects
C. LINQ to Entities
D. ADO.NET using DataSet objects and SqIDataAdapter objects

Question 4

You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft .NET Framework 4.
The application retrieves customer data from an enterprise resource planning (ERP) system.
You need to ensure that the following requirements are met: - Customer data is retrieved only once.
- Customer data is available on multiple forms within the application.
- Forms can implement Two-Way binding to the customer datA.
What should you do?

A. Store the results of the query in a local XML file. Bind all forms to an XMLDataAdapter object that references the local XML file.
B. Design a static class for the data that implements the IObservable interface. Subscribe to the static class from each of the forms that use the datA.
C. Store the results of the query in a static DataTable object that is used by all the forms.
D. Design a static class for the data that implements the INotifyPropertyChanged interface. Raise the PropertyChanged event to notify the forms when data is changed.

Question 5

You are designing a Windows Presentation Foundation (WPF) application that will be used to display real-time data from a Microsoft SQL Server 2008 database.
You need to recommend an approach for displaying the datA.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A. Use a System.Runtime.Caching object in the data layer with a sliding expiration, and query the database when the Cache object expires.
B. Implement OneWay binding between the controls in the WPF application and objects in the data layer.
C. Use a SqlCacheDependency object in the data layer to query the database when a change is detected.
D. Implement OneWayToSource binding between the controls in the WPF application and objects in the data layer.

Solutions: