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

1. You are designing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application is used mostly in a disconnected scenario. The application requires offline data from a Microsoft SQL Server 2008 database. When the application connects to the network, data will be modified and synchronized.
You need to ensure that the application does not access the database server directly to synchronize data when online.
Which technology should you use?

A) WCF Data Service
B) ADO.NET Sync Services
C) Remote Data Access
D) SQL Server Merge Replication

2. You are reviewing multiple Windows Presentation Foundation (WPF) applications that capture postal addresses. The WPF applications have different appearances and functionality. Each WPF application uses a different control to visualize the captured addresses.
You plan to modify all WPF applications to allow developers to visualize addresses by using a common template.
You need to recommend an approach for standardizing the visualization of captured addresses.
What should you recommend?

A) Use an ItemsPanelTemplate object.
B) Use a DataTemplate object.
C) Use a FrameworkTemplate object.
D) Use a ControlTemplate object.

3. ---
You are designing a .NET Framework 4 solution. The solution contains a Windows Presentation Foundation (WPF) application and a Windows Communication Foundation (WCF) Web service.
The WPF application uses the WCF Web service to store data in a Microsoft SQL Server 2008 database.
You have the following requirements:
Ensure that the WPF application functions while users' computers are offline.
Minimize the time spent sending data to the WCF Web service.
Minimize disk space requirements for data storage.
You need to recommend an approach for synchronizing data between the WPF application and the database.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A) Store data in custom business objects. Serialize data locally by using custom serialization.
B) Store data in DataSet objects. Serialize data locally by using XML serialization.
C) Create a local caching solution that periodically checks for Internet connectivity and writes directly to the local data store and to the WCF Web service.
D) Create a local caching solution that periodically checks for Internet connectivity, uses local memory, and batches changes to the WCF Web service.

4. You are analyzing an application that uses Microsoft .NET Framework 4 and Microsoft SQL Server 2008.
The application is used to maintain an inventory database and is accessed from several remote Windows client applications. The application frequently updates multiple rows in a database table by using a DbDataAdapter object.
Users report that the application runs slowly during peak business hours.
When large number of records are changed by multiple users, you discover the following:
The CPU utilization of the client applications is normal.
The network utilization increases slightly.
The CPU utilization of the database server remains close to the normal average
for a day.
You need to resolve the performance issue.
What should you do?

A) Remove any limit on batch update sizes. Modify the client application to perform a single update.
B) Disable batch updates. Modify the client application to perform a single update.
C) Insert a random time interval between updates.
D) Move the update method calls to a separate BackgroundWorker thread.

5. You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft .NET Framework 4.
You create a control named HelpViewer to view the Help documentation of the application. The HelpViewer control must be available to all windows in the application.
You need to ensure that the application allows users to perform the following tasks:
- Bookmark their location in the documentation and return to the bookmark from any
window.
- Hide the HelpViewer control.
- Dock the HelpViewer control.
You create a main window as a base class.
What should you do next?

A) Add the HelpViewer control and a Frame control to a DockPanel control to the window at runtime.
Create all other windows in the application as pages and host them in the Frame control.
B) Add the HelpViewer control to a DockPanel control at runtime.
Inherit all other window classes in the application from the main window base class.
C) Add the HelpViewer control and a Frame control to a StackPanel control to the window at runtime.
Create all other windows in the application as pages and host them in the Frame control.
D) Add the HelpViewer control to the window at runtime.
Inherit all other window classes in the application from the main window base class.

Solutions: