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Microsoft 70-513 Exam Syllabus Topics:

Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 Sample Questions:

1. You are developing a client that sends several types of SOAP messages to a Windows Communication
Foundation (WCF) service method named PostData PostData is currently defined as follows
<OperationContract>
Sub PostData(Byval data As Order) You need to modify PostData so that it can receive any SOAP message.
Which code segment should you use?

A) <OperationContract0> Sub PostData(ByVal data As Message)
B) <OperationContract> Sub PostData(Byval data As BodyWriter)
C) OperationContract(lsOneway: zTrue, Action:z'-', ReplyAction: z"-')> Sub PostData(ByVal data As BodyWriter)
D) <OperationContract(lsOneWay True, Action ReplyAction '-)> Sub PostData(ByVal data As Order)

2. You are developing a Windows Communication Foundation (WCF) service to provide an in-memory cache. The following code is part of your solution. (Line numbers are included for reference only.)
01 02 Public Interface IlnMemoryCacheService 03 04 <OperationContract()> 05 Function GetCachedItem( ByVal key As String) As String 06 07 <OperationContract() > 08 Sub CacheItem( ByVal key As String, ByVal item As String) 09 10 End Interface 11 12 <ServiceBehavior( InstanceContextMode:=InstanceContextHode.Single)> 13 Public Class CacheService 14 Implements IlnHemoryCacheService 15 16 Dim cache As Hashtatale - New Hashtable)> 17 18 Public Function GetCachedItem( ByVal key As String) As String mplements IInHemoryCacheService.GetCachedltem 19 20 Return cache (key) .ToStrlng() 21 22 End Function
23 24 Public Sub Cacheltem( ByVal key As String, ByVal item As String) Implements ilnMemoryCacheService.Cacheltem Then 25 26 If (cache.Contains(key) 27 cache.Remove(key) 28 End If 29 30 cache.Add(key, item) 31 32 End Sub
34 End Class
Users report that the cache is getting updated with cache changes of other users. You need to ensure that each user's cache is maintained and isolated from other users.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) At line 12, replace InstanceContextHode.Single with InstanceContextHode.PerSession.
B) Insert the following code at line 01. <ServiceContract(SessionMode:=SessionHode.NotAllowed)>
C) Insert the following code at line 01. <ServiceContract(SessionHode:=SessionHode.Required)>
D) At line 12, replace InstanceContextHode.Single with InstanceContextHode.PerCall.

3. A Windows Communication Foundation (WCF) solution exposes the following service over a TCP binding. (Line numbers are included for reference only.)
01 [ServiceContract]
02 [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple)]
03 public class DataAccessService
04 {
05 [OperationContract]
06 public void PutMessage(string message)
07 {
08 MessageDatabase.PutMessage(message);
09 }
10 [OperationContract]
11 public string[] SearchMessages(string search)
12 {
13 return MessageDatabase.SearchMessages(search);
14 }
15 }
MessageDatabase supports a limited number of concurrent executions of its methods.
You need to change the service to allow up to the maximum number of executions of the methods of MessageDatabase. This should be implemented without preventing customers from connecting to the service.
What should you do?

A) Add a throttling behavior to the service, and configure the maxConcurrentSessions.
B) Change the service behavior as follows. [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Multiple, InstanceContextMode = InstanceContextMode.Single)]
C) Change the service behavior as follows. [ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Single, InstanceContextMode = InstanceContextMode.PerSession)]
D) Add a throttling behavior to the service, and configure the maxConcurrentCalls.

4. You are developing a Windows Communication Foundation (WCF) client application. The client application contains the following code.

The configuration file contains the following lines.

You need to ensure that the service is consumed.
Which code segment should you use?

A) Dim client As SocialClient = New SocialClient("SocialClient") client.Endpoint.Behaviors.Add( New WebHttpBehavior())
B) Dim client As SocialClient = New SocialClient("SocialClient") client.Endpoint.Behaviors.Add( New WebScriptEnablingBehavlor())
C) Dim client As SocialClient = New SocialClient("POST") client.Endpoint.Behaviors.Add( New WebScriptEnablingBehovior())
D) Dim client As SocialClienc = New SocialClienc("POST") client.Endpoint.Behaviors.Add( New WebHttpBehavior())

5. DRAG DROP
You create a Windows Communication Foundation (WCF) service. The service uses a federated security architecture.
The architecture consists of the following components:
----
Order service
Store security token service (STS)
Home security token service (STS)
Order client application
The Order service includes the following markup:

The Store service includes the following markup:

You have the following requirements:
-- -
The Order service requires authentication to access any of the service operations.
The Order service must redirect all client application authentication requests to the
Store STS.
The Store STS must redirect all client application authentication requests to the
Home STS.
You need to configure the sequence of events that occur when the client application accesses an Order service operation.
Which six actions should you perform in sequence? (To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.)

Solutions: