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Microsoft 70-503 Exam Syllabus Topics:

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

1. You are creating an endpoint for a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You create the endpoint by using a custom binding. You write the following code segment.

You need to prevent the custom binding from making a persistent connection to the service endpoint.
Which code segment should you use?

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

2. You are creating a Windows Communication Foundation client application by using Microsoft .NET Framework 3.5. You add the following code segment to a service contract.

The DeleteDocument method in the service contract takes a long time to execute. The client application stops responding until the method finishes execution.
You write the following code segment to create an instance of a service proxy in the client application. (Line numbers are included for reference only.)

You need to ensure that the service methods are called asynchronously. What should you do?

A) Insert the following code segment at line 05.
client.BeginDeleteDocument(20, ProcessDeleteDocument, client);
Insert the following code segment at line 09.
count=(result.AsyncState as DocumentServiceClient). EndDeleteDocument(res)
B) Insert the following code segment at line 05.
client.BeginDeleteDocument(20, ProcessDeleteDocument, client);
Insert the following code segment at line 09.
count=(result.AsyncState as DocumentServiceClient). EndDeleteDocument(nul)
C) Insert the following code segment at line 05.
IAsyncResult result= client.BeginDeleteDocument(20, ProcessDeleteDocument, client);int
count=client.EndDeleteDocument(result);
Insert the following code segment at 09.
result.AsyncWaitHandle.WaitOne();
D) Insert the following code segment at line 05.
client.BeginDeleteDocument(20, ProcessDeleteDocument, client);
Insert the following code segment at line 09.
result.AsyncWaitHandle.WaitOne(); int count=(result as DocumentServiceClient).
EndDeleteDocument(result);

3. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
You create an instance of the ServerHost class. You plan to host the WCF service in a Windows service.
You need to link the lifetime of the WCF service to the lifetime of the Windows service.
Which three actions should you perform on the instance of the ServerHost class? (Each correct answer presents part of the solution. Choose three.)

A) Override the InitializeLifetimeService method.
B) Override the OnStart method.
C) Override the RequestAdditionalTime method.
D) Override the OnStop method.
E) Override the GetLifetimeService method.
F) Subscribe to the Faulted event.

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

You need to ensure that the client applications always use a binding that supports sessions.
Which code segment should you insert at line 01?

A) [ServiceContract(ProtectionLevel= ProtectionLevel.EncryptAndSign) ]
B) [ServiceContract(SessionMode=SessionMode.Allowed) ]
C) [ServiceContract(ProtectionLevel= ProtectionLeve1.EncryptAndSign, SessionMode=SessionMode.Allowed)]
D) [ServiceContract(SessionMode=SessionMode.Required) ]

5. You are creating a Windows Communication Foundation client application by using Microsoft .NET Framework 3.5. You add the following code segment to a service contract.

The DeleteDocument method in the service contract takes a long time to execute. The client application stops responding until the method finishes execution.
You write the following code segment to create an instance of a service proxy in the client application. (Line numbers are included for reference only.)

You need to ensure that the service methods are called asynchronously. What should you do?

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

Solutions: