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Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:

1. You create a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation to create the application.
You pass the client credentials to the service that runs on two Web servers named IIS1 and IIS2. The service uses the credentials to query data from a remote Microsoft SQL Server 2005 database named DB1.
The client applications can retrieve data from the service when they connect to IIS1. When the client applications attempt to retrieve data from the service by connecting to IIS2, they receive the following error message:
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
You need to ensure that both IIS1 and IIS2 can query data from DB1.
What should you do?

A) Configure IIS2 for constrained delegation to DB1.
B) Configure DB1 for full delegation.
C) Execute the following command on a domain controller. setspn -A http/iis2.example.com:80 DOMAIN\iis2$
D) Change the SQL connection string on IIS2 from "Data Source=DBl; Initial Catalog=db;Integrated Security=True" to "Data Source=DBl;Initial Catalog=db;Integrated Security=SSPI".

2. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
You need to host the WCF service on the IIS Web server. First, you create a new folder for your application files. Next, you use the IIS management tool to create a Web application in the new folder.
Which three actions should you perform next? (Each correct answer presents part of the solution. Choose three.)

A) Create a web.config file that contains the appropriate configuration code. Place this file in the application folder.
B) Create an App_Code sub-folder within the application folder for your code files. Place the code file that defines and implements the service contract in this folder.
C) Create a service file that has the svc extension containing the @service directive information for the service. Move this file to the application folder.
D) Create a web.config file that contains the appropriate configuration code. Place this file in the same folder as your service contract code.
E) Create a service file that has the .svc extension containing the @servicehost directive information for the service. Move this file to the application folder.
F) Create a vti_bin sub-folder within the application folder for your code files. Place the code file that defines and implements the service contract in this folder.

3. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You have successfully created two interfaces: IMyService and IMyServiceClient.
You need to ensure that the service is able to call methods from the client application by using the IMyServiceClient interface.
Which code segment should you use?

A) Option D
B) Option A
C) Option C
D) Option B

4. You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. You write the following code segment. (Line numbers are included for reference only.)
01 public interface IMyService
02{
04 string ProcessString(string name);
05}
You create a host for the WCF service. You also create a service endpoint at http://localhost:8080/service. You add an instance of the HttpTransferEndPointBehavior class to the host.
You need to ensure that the ProcessString method can be invoked from a Web browser by using the URL http://localhost:8080/service/process? name=value.
Which code segment should you insert at line 03?

A) [OperationContract][WebGet(UriTemplate = "process?name={name}")]
B) [OperationContract(Name="process", Action="Post")]
C) [OperationContract(Name="process", Action="Get")]
D) [OperationContract][Weblnvoke(UriTemplate = "process?name={name}")]

5. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment.

You have not deployed the IMathService service.
You need to expose the AddNumbers (double a, double b) operation to the IMathService
service contract.
Which code segment should you use?

A) Option D
B) Option A
C) Option C
D) Option B

Solutions: