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

1. You are creating a client application by using Microsoft .NET Framework 3.5. The
application consumes an ASMX Web service.
You need to configure the binding to call the methods of the ASMX Web service.
Which binding should you use?

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

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(nul)
B) 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();
C) 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);
D) 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)

3. 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 (a As Double, b As Double) As Double operation to
the IMathService service contract.
Which code segment should you use?

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

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

A console application hosts the WCF service. A Microsoft Windows client application uses the WCF service.
You need to implement the callback operation for the client application. You also need to ensure that the callback operation will not encounter deadlocks during execution.

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

5. You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. You are designing a data contract for a Windows Communication foundation (WCF) service that will be hosted by the application. You need to ensure that the data contract meets the following requirements: It does not support Schema versioning.
It allows additional contract and additional elements to be included over time. It allows the client applications to submit messages that contain additional elements without error.
What should you do?

A) Implement the IExtensibleDataObject interface.
B) Use the IsRequired property.
C) Implement the IMetadataExchange interface.
D) Use the DataMemberAttribute attribute.

Solutions: