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| Section | Weight | Objectives |
|---|---|---|
| Designing the Data Access Layer | 25% | - Design caching and performance - Design data access objects - Design connection management and transactions - Choose data access technologies |
| Designing the Layers of a Solution | 20% | - Design architecture layers - Design exception management - Design for security - Design service interaction |
| Designing for Stability and Maintenance | 15% | - Design for scalability and reliability - Design error handling and recovery - Design for testability - Design diagnostics and logging |
| Planning a Solution Deployment | 15% | - Design installation and configuration - Design update and versioning strategy - Choose deployment strategy |
| Designing the Presentation Layer | 25% | - Design UI layout and structure - Design data binding and validation - Design for usability and accessibility - Choose appropriate technology (Windows Forms vs WPF) |
1. ---
An existing Windows application uses a Windows Communication Foundation (WCF) Web service that is available only to employees.
You have the following requirements:
Make the WCF Web service available to business partners.
Enable business partners to send a profile token.
Ensure that the currently deployed application continues to function.
You need to recommend a solution that meets the requirements.
What should you recommend?
A) Convert the WCF Web service to a Duplex service that implements a callback to accept the profile token.
B) Use SOAP headers to pass the profile token to the service operations.
C) Modify the WCF Web service operations to accept the profile token as an additional parameter.
D) Implement the WCF Web service as a REST service.
2. 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 access logiC.
You need to recommend a data access technology.
What should you recommend?
A) ADO.NET using DataSet objects and SqIDataAdapter objects
B) LINQ to SQL
C) ADO.NET using DataSet objects and SqlDataReader objects
D) LINQ to Entities
3. You are designing a Windows Presentation Foundation (WPF) application. The main window of the WPF application includes two panels: panel1and panel2.
The WPF application must meet the following requirements:
- Panel2 must be enabled only after users have entered values into multiple text boxes in panel1. - The background color of panel2 must be set to a specific color based on oneof the text box values in panel1. - The background color of panel2 must be set at the same time the panel is enabled.
You need to recommend an approach for meeting the requirements.
What should you recommend?
A) Use a Command object.
B) Use Dependency properties.
C) Use a Data Template object.
D) Use a MultiDataTrigger object.
4. You are designing a Windows Presentation Foundation (WPF) application that uses .NET Framework 4. The application uses a subset of the functionality provided by a third-party COM component that will be replaced later.
The application developers must have access to only the required subset of functionality.
You need to recommend a solution that meets the requirements.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)
A) In the adapter assembly, use a standard interop reference.
B) Create an adapter assembly that exposes the entire functionality of the COM component.
C) In the adapter assembly, use an embedded interop reference.
D) Create an adapter assembly that exposes the required subset of the COM component functionality.
5. You are designing a Windows Presentation Foundation (WPF) application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008.
You have designed the application to use the ADO.NET Entity Framework for the Data Access Layer (DAL).
You have designed the user interface (UI) of the application by using the Model-View-ViewModel (M-V-VM) pattern.
The middle tier of the application is designed by using Windows Communication Foundation (WCF).
The database schema changes often. The DAL entity objects are required to be referenced from the middle tier and the ViewModel layer of the UI.
You need to ensure that the DAL entity objects are updated when the database schema changes.
What should you do?
A) Create persistent-aware objects.
B) Create an observable collection of objects.
C) Create persistent-ignorant objects.
D) Create typed DataSets.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: D | Question # 3 Answer: D | Question # 4 Answer: B,D | Question # 5 Answer: C |
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