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Microsoft TS: Accessing Data with Microsoft .NET Framework 4 Sample Questions:

1. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create an application.
The application connects to a Microsoft SQL Server 2008 database. The database includes a table that
contains information about all the employees.
The database table has a field named EmployeeType that identifies whether an employee is a Contractor or
a Permanent employee.
You declare the Employee entity base type. You create a new Association entity named Contractor that
inherits the Employee base type.
You need to ensure that all Contractors are bound to the Contractor class. What should you do?

A) Modify the .edmx file to include the following line of code: <Condition ColumnName="EmployeeType" Value="Contractor" />
B) Modify the .edmx file to include the following line of code: <NavigationProperty Name="Type" FromRole="EmployeeType" ToRole="Contractor" />
C) Use the Entity Data Model Designer to set up an association between the Contractor class and EmployeeType.
D) Use the Entity Data Model Designer to set up a referential constraint between the primary key of the Contractor class and EmployeeType.

2. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to create a multi-tier application.
You use Microsoft ADO.NET Entity Data Model (EDM) to model entities.
The model contains entities named SalesOrderHeader and SalesOrderDetail.
For performance considerations in querying SalesOrderHeader, you detach SalesOrderDetail entities from
ObjectContext.
You need to ensure that changes made to existing SalesOrderDetail entities updated in other areas of your
application are persisted to the database.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Call ObjectContext.ApplyOriginalValue.
B) Re-attach the SalesOrderDetail entities.
C) Set the MergeOption of SalesOrderDetail to MergeOptions.NoTracking.
D) Set the MergeOption of SalesOrderDetail to MergeOptions.OverwriteChanges.
E) Call ObjectContext.ApplyCurrentValue.

3. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application that connects to a MS SQL server 2008 database by User Authentication. The application contains the following connection string:
SERVER=DBSERVER-01; DATABASE=pubs; uid=sa; pwd=secret;
You need to ensure that the password value in the connection string property of a SqlConnection object
does not exist after is called.
What should you add to the connection string?

A) Trusted_Connection = False
B) Persist Security Info = True
C) Trusted_Connection = True
D) Persist Security Info = False

4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 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?

A) an HTTP ContentType header as part of a GET request
B) an X-HTTP-Method header as part of a GET request
C) an X-HTTP-Method header as part of a POST request
D) an HTTP ContentType header as part of a POST request

5. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4.0 to develop an application. You use the Entity Framework Designer to create an Entity Data Model using model-first development.
The database has the following requirements:
-each table must have a datetime column named time_modified
-each table requires a trigger that updates the value of the time_modified column when a row is inserted or updated
You need to ensure that the database script that is created by using the Generate Database From Model
option meets the requirements.
What should you do?

A) Create a new T4 template, and set the DDL Generation template to the name of the new template.
B) Add a new entity named time_modified to the model, and modify each existing entity so that it inherits from the new entity.
C) Create a new Windows Workflow Foundation workflow, and set Database Generation Workflow to the name of the new workflow.
D) Add a DateTime property named time_modified to each entity in the model and set the property's StoreGeneratedPattern to Computed.

Solutions: