Microsoft 70-503 Value Pack (Frequently Bought Together)

You are creating a Windows Communication Foundation distributed application by using Microsoft .NET Framework 3.5. You write the following code segment to implement the service contract. (Line numbers are included for reference only.)

You need to ensure that the client applications of only those users who belong to the Administrators group can access the RemoveOrder method.
Which code segment should you insert at line 05?

• A. Option D
• B. Option A
• C. Option C
• D. Option B

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 DB1 for full delegation.
• B. 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".
• C. Execute the following command on a domain controller. setspn -A http/iis2.example.com:80 DOMAIN\iis2$
• D. Configure IIS2 for constrained delegation to DB1.

You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5.
You need to ensure that the callback channel between the service and the client application is available for the service to send a status message.
Which code segment should you use?

• A. if(((ICommunicationObject)callback).State== CommunicationState.Faulted)
• B. if(((ICommunicationObject)callback).State== CommunicationState.Created)
• C. if(((ICommunicationObject)callback).State== CommunicationState.Opening)
• D. if(((ICommunicationObject)callback).State== CommunicationState.Opened)

You are creating a Windows Communication Foundation client application by using Microsoft .NET Framework 3.5.
The client application consumes the Web Services Enhancements (WSE) 3.0 Web service.
The Web service uses standard WSE 3.0 to transfer binary data to the client application.
The client application uses the following binding configuration.
(Line numbers are included for reference only.)

You need to ensure that the client application receives binary data from the WSE 3.0 Web service.
Which code fragment should you insert at line 03?

• A. Option D
• B. Option A
• C. Option C
• D. Option B

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

You need to ensure that the service instance is recycled when the transaction is complete.
Which line of code should you insert at line 07?

• A. [ServiceBehavior(ReleaseServiceInstanceOnTransactionComplete= true. ConcurrencyMode=ConcurrencyMode.MultipleJ]
• B. [ServiceBehavior(ConcurrencyMode=ConcurrencyMode.Single, Transact ionAutoCompleteOnSess ionClose=true)]
• C. [ServiceBehavior(ReleaseServiceInstanceOnTransactionComplete= true. ConcurrencyMode=ConcurrencyMode.Multiple, TransactionAutoCompleteOnSessionClose=true)]
• D. [ServiceBehavior(ReleaseServiceInstanceOnTransactionComplete= true. ConcurrencyMode=ConcurrencyMode.Single)]