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| Section | Objectives |
|---|---|
| Topic 1: Client Configuration and Consumption | - Service consumption
|
| Topic 2: Designing and Developing WCF Services | - Service contracts and data contracts
|
| Topic 3: Security in WCF Services | - Authentication and authorization
|
| Topic 4: WCF Bindings and Messaging | - Message patterns
|
| Topic 5: Configuring and Hosting WCF Services | - Service configuration
|
1. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment for the service implementation. (Line numbers are included for reference only.)
01 Public Sub PutMessage(ByVal msg As Message)
02 Dim value As String = Nothing
04 End Sub You need to retrieve the content from the received message body and store it in the variable named value.
Which code segment should you insert at line 03?
A) Option D
B) Option A
C) Option C
D) Option B
2. You create a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5. The WCF service contains two operations named ProcessSimpleOrder and ProcessComplexOrder. You need to expose the ProcessSimpleOrder operation to all the client applications. You also need to expose the ProcessComplexOrder operation only to specific client applications. Which code segment should you use?
A) Option D
B) Option A
C) Option C
D) Option B
3. What binding should be used to support sessions?
A) [ServiceContract(ProtectionLevel=ProtectionLevel.EncryptAndSign)]
B) [ServiceContract(
ProtectionLevel=ProtectionLevel.EncryptAndSign
SessionMode= SessionMode.Allowed)
)]
C) [ServiceContract(SessionMode = SessionMode.Required)]
D) [ServiceContract(SessionMode = SessionMode.Allowed)]
4. You are creating a Windows Communication Foundation client application by using Microsoft .NET Framework 3.5.
You need to inspect the parameters on the client application.
Which three actions should you perform? (Each correct answer presents part of the solution. Choose three.)
A) Implement the IParameterlnspector interface.
B) Implement the lEndpointBehavior behavior to add the parameter inspector to the Dispatcher. DispatchOperation.Parameterlnspectors method.
C) Implement the ICIientMessagelnspector interface.
D) Insert a code segment that creates a behavior in the ICallContextlnitializer.BeforelnvokeO method.
E) Implement the lEndpointBehavior behavior to add the parameter inspector to the Dispatcher. ClientOperation.Parameterlnspectors method.
F) Insert a behavior before you call the ClientBase.Open method.
5. You create a client application by using Microsoft .NET Framework 3.5. The client application uses a Windows Communication Foundation (WCF) service.
The WCF service reads the value of the incoming message headers by using the following code segment.
The following code fragment is a part of the application configuration file. (Line numbers are included for reference only.)
The client application adds a message header each time it calls the WCF service.
You need to ensure that the message header provides the following values to its parameters.
Which code fragment should you insert at line 04?
A) Option D
B) Option A
C) Option C
D) Option B
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: B | Question # 3 Answer: C | Question # 4 Answer: A,E,F | Question # 5 Answer: C |
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