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Microsoft UPG:Transition MCPD.NET Frmwrk 3.5 Web Dev to 4 Web Dev Sample Questions:

1. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create a Windows Communication Foundation (WCF) Data Services service. The service connects to a Microsoft SQL Server 2008 database. The service is hosted by an Internet Information Services (IIS) 6.0 server. You need to ensure that applications authenticate against user information stored in the database before the application is allowed to use the service. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Configure IIS to require Windows authentication.
B) Configure IIS to allow anonymous access.
C) Enable the WCF Authentication Service.
D) Configure IIS to require basic authentication.
E) Modify the Data Services service to use a Microsoft ASP.NET membership provider.

2. You are designing a data access service backed by Microsoft SQL Server. Other developers will use your
service as a third-party service.
You have the following requirements:
*To reduce maintenance cost, you must write the minimal amount of code required for fulfilling the goals.
*The service must function with Microsoft and non-Microsoft technologies.
*The service must implement the WS-Security standards.
You need to design the service to meet the requirements.
Which approach should you recommend?

A) Use an ASP.NET Web service.
B) Use an .ashx file to return an XML response over HTTPS.
C) Use a WCF service with multiple bindings.
D) Use SQL Server XML Web services.

3. You are creating a Windows Communication Foundation (WCF) service. You do not want to expose the internal implementation at the service layer. You need to expose the following class as a service named Arithmetic with an operation named Sum. public class Calculator {
public int Add(int x, int y)
{
}
}
Which code segment should you use?

A) [ServiceContract(ConfigurationName="Arithmetic")] public class Calculator {
[OperationContract(Action="Sum")]
public int Add(int x, int y)
{
...
}
}
B) [ServiceContract(Name="Arithmetic")] public class Calculator {
[OperationContract(Name="Sum")]
public int Add(int x, int y)
{
...
}
}
C) [ServiceContract(Namespace="Arithmetic")] public class Calculator {
[OperationContract(Action="Sum")]
public int Add(int x, int y)
{
...
}
}
D) [ServiceContract(Name="Arithmetic")] public class Calculator {
[OperationContract(ReplyAction="Sum")]
public int Add(int x, int y)
{
...
}
}

4. You use Microsoft Visual Studio 2010 and Microsoft .NET Framework 4 to create an application. The application connects to a Microsoft SQL Server 2008 database. The database includes a table named dbo. Documents that contains a column with large binary dat a. You are creating the Data Access Layer (DAL). You add the following code segment to query the dbo.Documents table. (Line numbers are included for reference only.)
01public void LoadDocuments(DbConnection cnx)
02{
03var cmd = cnx.CreateCommand();
04cmd.CommandText = "SELECT * FROM dbo.Documents";
05...
06cnx.Open();
08ReadDocument(reader); }
You need to ensure that data can be read as a stream. Which code segment should you insert at line 07?

A) var reader = cmd.ExecuteReader(CommandBehavior.Default);
B) var reader = cmd.ExecuteReader(CommandBehavior.SequentialAccess);
C) var reader = cmd.ExecuteReader(CommandBehavior.KeyInfo);
D) var reader = cmd.ExecuteReader(CommandBehavior.SchemaOnly);

5. You are creating a Windows Communication Foundation (WCF) service that implements operations in a
RESTful manner.
You need to add a delete operation.
You implement the delete method as follows.
string void DeleteItems(string id);
You need to configure WCF to call this method when the client calls the service with the HTTP DELETE
operation. What should you do?

A) Replace the string parameter with a RemovedActivityAction parameter.
B) Replace the return type with RemovedActivityAction.
C) Add the WebInvoke(UriTemplate = "/Items/{id}",Method="DELETE") attribute to the operation.
D) Add the HttpDelete attribute to the operation.

Solutions: