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

1. You are creating a remote database management application by using Microsoft Windows Forms and Microsoft .NET Framework 3.5. You use the Windows
Communication Foundation model to create the application. You write the following code segment. (Line numbers are included for reference only.)
01 public class QueryAnalyzerService :
02 IQueryAnalyzerService, IDisposable {
04 public void Open() {
05}
06 public void ExecuteSql(string sql) {
07...
08!
09 public void Close() {
10...
11}
12 public void Disposed
13...
14}
15...
16}
You need to ensure that each time a client application calls the Open0 method, a new service instance is created. Which code segment should you insert at line 03?

A) [OperationBehavior( ReleaselnstanceMode=ReleaselnstanceMode.None)]
B) [OperationBehavior( AutoDisposeParameters=true)]
C) [OperationBehavior( ReleaselnstanceMode=ReleaselnstanceMode.BeforeCall))
D) [OperationBehavior( TransactionScopeRequired=true)]

2. 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 C
C) Option A
D) Option B

3. You are creating a client application by using Microsoft .NET Framework 3.5. The client application uses a Windows Communication Foundation service.
To log the called service proxy methods and their parameters, you implement custom endpoint behavior in the following class.
Class ParametersLoggerBehavior
Implements lEndpointBehavior End Class
You also create the following class for the custom behavior.
Class LoggerElement
Inherits BehaviorExtensionElement End Class
You add the following configuration code fragment to the application configuration file. (Line numbers are included for reference only.)

You need to ensure that the endpoint uses the custom behavior. Which configuration settings should you insert at line 03?

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

4. You are creating a remote database management application by using Microsoft Windows Forms and Microsoft .NET Framework 3.5. You use the Windows Communication Foundation model to create the application.
You write the following code segment. (Line numbers are included for reference only.)
01 Public Class ()ueryAnalyzerService 02 Implements IQueryAnalyzerService, IDisposable
04 Public Sub Open() 05 ...
06 End Sub 07 Public Sub ExecuteSql(ByVal sql As String) 08...
09 End Sub
10 Public Sub Close()
11 ...
12 End Sub
13 Public Sub Dispose() Implements IDisposable.Dispose 14...
15 End Sub 16...
17 End Class
You need to ensure that each time a client application calls the Open0 method, a new service instance is created. Which code segment should you insert at line 03?

A) <OperationBehavior(TransactionScopeRequired:=True)> _
B) <OperationBehavior(AutoDisposeParameters:=True)> _
C) <OperationBehavior(_ ReleaselnstanceMode:=ReleaselnstanceMode.BeforeCall>
D) <OperationBehavior( _ ReleaselnstanceMode:=ReleaselnstanceMode.None)> _

5. You are creating a Windows Communication Foundation service by using Microsoft .NET
Framework 3.5.
The service will be hosted on a Web server. You add the following code fragment to the
.svc file.
<% @ServiceHost factory="ExamServicefactory" Service="ExamService" %>
You need to create the instances of the services by using the custom ExamServicefactory class.
Which code segment should you use?

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

Solutions: