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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( AutoDisposeParameters=true)]
B) [OperationBehavior( ReleaselnstanceMode=ReleaselnstanceMode.BeforeCall))
C) [OperationBehavior( ReleaselnstanceMode=ReleaselnstanceMode.None)]
D) [OperationBehavior( TransactionScopeRequired=true)]
2. What actions should you take to inspect messages on server? (choose 3)
A) Implement IDispatchMessageInspector
B) Insert behavior before ICommonObject.Open
C) Implement IOperationBehavior
D) Insert behavior before IClientObject.Open
E) Implement IClientMessageInspector
F) Implemement IEndpointBehavior
3. You are creating a Windows Communication Foundation (WCF) client application by using Microsoft .NET Framework 3.5.
The proxy generated for the WCF service results in the following code segment.
To implement a callback interface, you create the following class in the client application.
Public Class StoreCallback
Implements IStoreCallback End Class
The client application receives notifications from the service through the callback interface. You write the following code segment for the client application to use the generated proxy. (Line numbers are included for reference only.)
02 client. CheckAvailableProducts()
You need to set up duplex communication between the client application and the WCF service. Which code segment should you insert at line 01?
A) Option A
B) Option B
C) Option D
D) Option C
4. You create a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment.
The service uses a transactional binding. The TransactionFlow property for the binding is set to true. You need to ensure that the MyMethod method meets the following requirements:
Which code segment should you insert at line 05?
A) [OperationBehavior(TransactionScopeRequired=false)] [TransactionFlow(TransactionFlowOption.Allowed)]
B) [OperationBehavior(TransactionScopeRequired=true)] [TransactionFlow(TransactionFlowOption.Mandatory)]
C) [OperationBehavior(TransactionScopeRequired=false)] [TransactionFlow(TransactionFlowOption.Mandatory)]
D) [OperationBehavior(TransactionScopeRequired=true)] [TransactionFlow(TransactionFlowOption.Allowed)]
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 A
B) Option B
C) Option D
D) Option C
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: A,C,F | Question # 3 Answer: A | Question # 4 Answer: D | Question # 5 Answer: A |
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