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- Question
You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. You use the ADO.NET Entity Framework to model entities. You write the following code segment. (Line numbers are included for reference only.) 01AdventureWorksEntities context = New AdventureWorksEntities 02 03var q = from c in context.Customers 04where c.City == "London" 05orderby c.CompanyName 06select c; You need to ensure that the application meets the following requirements: "Compares the current values of unmodified properties with values returned from the data source". Marks the property as modified when the properties are not the same. Which code segment should you insert at line 02?
Options- A. context.MergeOption = MergeOption.AppendOnly;
- B. context.MergeOption = MergeOption.PreserveChanges;
- C. context.MergeOption = MergeOption.OverwriteChanges;
- D. context.MergeOption = MergeOption.NoTracking;
- Correct Answer
- context.MergeOption = MergeOption.PreserveChanges;
- 1. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application connects to a Microsoft SQL Server database. The application stores encrypted credit card numbers in the database. You need to ensure that credit card numbers can be extracted from the database. Which cryptography provider should you use?
Options- A. DSACryptoServiceProvider
- B. AESCryptoServiceProvider
- C. MD5CryptoServiceProvider
- D. SHA1CryptoServiceProvider Discuss
- 2. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application uses the ADO.NET Entity Framework to manage customer and related order records. You add a new order for an existing customer. You need to associate the Order entity with the Customer entity. What should you do?
Options- A. Set the Value property of the EntityReference of the Order entity.
- B. Call the Add method on the EntityCollection of the Order entity.
- C. Use the AddObject method of the ObjectContext to add both Order and Customer entities.
- D. Use the Attach method of the ObjectContext to add both Order and Customer entities. Discuss
- 3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application connects to a Microsoft SQL Server database. The application has two DataTable objects that reference the Customers and Orders tables in the database. The application contains the following code segment. (Line numbers are included for reference only.) 01DataSet customerOrders = new DataSet(); 02customerOrders.EnforceConstraints = true; 03ForeignKeyConstraint ordersFK = new ForeignKeyConstraint("ordersFK", 04customerOrders.Tables["Customers"].Columns["CustomerID"], 05customerOrders.Tables["Orders"].Columns["CustomerID"]); 06 07customerOrders.Tables["Orders"].Constraints.Add(ordersFK); You need to ensure that an exception is thrown when you attempt to delete Customer records that have related Order records. Which code segment should you insert at line 06?
Options- A. ordersFK.DeleteRule = Rule.SetNull;
- B. ordersFK.DeleteRule = Rule.None;
- C. ordersFK.DeleteRule = Rule.SetDefault;
- D. ordersFK.DeleteRule = Rule.Cascade; Discuss
- 4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application uses the ADO.NET Entity Framework to model entities. The application allows users to make changes to entities while disconnected from the central data store. You need to ensure that when the user connects to the central data store and retrieves new data, the application meets the following requirements: Changes made to the local data store in disconnected mode are preserved. Entities that have already been loaded into the local data store, but have not been modified by the user, are updated with the latest data. What should you do?
Options- A. Call the query's Execute method by using the MergeOptions.AppendOnly option.
- B. Call the query's Execute method by using the MergeOptions.OverwriteChanges option.
- C. Call the Refresh method of ObjectContext by using the RefreshMode.StoreWins option.
- D. Call the Refresh method of ObjectContext by using the RefreshMode.ClientWins method. Discuss
- 5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Communication Foundation (WCF) Data Services service. You discover that when an application submits a PUT or DELETE request to the Data Services service, it receives an error. You need to ensure that the application can access the service. Which header and request type should you use in the application?
Options- A. an X-HTTP-Method header as part of a POST request
- B. an X-HTTP-Method header as part of a GET request
- C. an HTTP ContentType header as part of a POST request
- D. an HTTP ContentType header as part of a GET request Discuss
- 6. You use Microsoft Visual Studio 2010 and Microsoft ADO.NET Framework 4 to create an application. The application connects to a Microsoft SQL Server 2008 database. You use the ADO.NET LINQ to SQL model to retrieve data from the database. You use stored procedures to return multiple result sets. You need to ensure that the result sets are returned as strongly typed values. What should you do?
Options- A. Apply the FunctionAttribute and ResultTypeAttribute to the stored procedure function. Use the GetResult
- B. Apply the FunctionAttribute and ParameterAttribute to the stored procedure function and directly access the strongly typed object from the results collection.
- C. Apply the ResultTypeAttribute to the stored procedure function and directly access the strongly typed object from the results collection.
- D. Apply the ParameterAttribute to the stored procedure function. Use the GetResult Discuss
- 7. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. You use the ADO.NET Entity Data Model (EDM) to define a Customer entity. You need to add a new Customer to the data store without setting all the customer's properties. What should you do?
Options- A. Call the Create method of the Customer object.
- B. Call the CreateObject method of the Customer object.
- C. Override the Create method for the Customer object.
- D. Override the SaveChanges method for the Customer object. Discuss
- 8. You are a developer for a XYZ Inc that provides free software over the Internet. You are developing en e-mail application that users all over the world can download. The application displays text strings in the user interface. At run time, these text strings must appear in the language that is appropriate to the locale setting of the computer running the application. You have resources to develop versions of the application for only four different cultures.You must ensure that your application will also be usable by people of other cultures. How should you prepare the application for deployment?
Options- A. Package a different assembly for each culture.
- B. Package a different executable file for each culture.
- C. Package a main assembly for source code and the default culture. Package satellite assemblies for the other cultures.
- D. Package a main assembly for source code. Package satellite assemblies for each culture. Discuss
- 9. You work as software developer at XYZ inc. You need to develop a Windows form that provides online help for users. You want the help functionality to be available when users press the F1 key. Help text will be displayed in a pop-up window for the text box that has focus. To implement this functionality, you need to call a method of the HelpProvider control and pass the text box and the help text. What should you do?
Options- A. SetShowHelp
- B. SetHelpString
- C. SetHelpKeyword
- D. ToString Discuss
- 10. You develop a Windows-based application that enables to enter product sales. You add a subroutine named XYZ. You discover that XYZ sometimes raises an IOException during execution. To address this problem you create two additional subroutines named LogError and CleanUp. These subroutines are governed by the following rules: ? LogError must be called only when XYZ raises an exception. ? CleanUp must be called whenever XYZ is complete. You must ensure that your application adheres to these rules. Which code segment should you use?
Options- A. try { XYZ(); LogError(); } catch (Exception e) { CleanUp(e); }
- B. try { XYZ(); } catch (Exception e) { LogError(e); CleanUp(); }
- C. try { XYZ(); } catch (Exception e) { LogError(e); } finally { CleanUp(); }
- D. try { XYZ(); } catch (Exception e) { CleanUp(e); } finally { LogError(); } Discuss
Microsoft Certification problems
Search Results
Correct Answer: AESCryptoServiceProvider
Correct Answer: Set the Value property of the EntityReference of the Order entity.
Correct Answer: ordersFK.DeleteRule = Rule.None;
Correct Answer: Call the Refresh method of ObjectContext by using the RefreshMode.ClientWins method.
Correct Answer: an X-HTTP-Method header as part of a POST request
Correct Answer: Apply the FunctionAttribute and ResultTypeAttribute to the stored procedure function. Use the GetResult
Correct Answer: Call the CreateObject method of the Customer object.
Correct Answer: Package a main assembly for source code and the default culture. Package satellite assemblies for the other cultures.
Explanation:
When you build a project, the resource files are compiled and then embedded in satellite assemblies, or assemblies which contain only the localized resources. The fallback resources are built into the main assembly, which also contains the application code.
Correct Answer: SetHelpString
Explanation:
To associate a specific Help string with another control, use the SetHelpString method. The string that you associate with a control using this method is displayed in a pop-up window when the user presses the F1 key while the control has focus.
Correct Answer: try { XYZ(); } catch (Exception e) { LogError(e); } finally { CleanUp(); }
Explanation:
We must use a try?catch?finally construct. First we run the Comapany() code in the try block.Then we use the LogError() subroutine in the catch statement since all exceptions are handled here. Lastly we put the CleanUp() subroutine in the finally statement since this code will be executed regardless of whether an exception is thrown or not.
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