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Microsoft 070-513 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Hosting and Deploying WCF Services | - Configuration and deployment
|
| Topic 2: Bindings and Messaging | - WCF bindings
|
| Topic 3: Diagnostics and Troubleshooting | - Logging and tracing
|
| Topic 4: WCF Security | - Security configuration
|
| Topic 5: Designing and Implementing WCF Services | - Service contracts and data contracts
|
Microsoft TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4 Sample Questions:
A Windows Communication Foundation (WCF) solution provides a session-based counter.
The service is self-hosted. The hosting code is as follows.
Dim host As ServiceHost = New ServiceHost(GetType(CounterService))
Dim bnding As NetTcpBinding =
New NetTcpBinding(SecurityMode.None)
host.AddServiceEndpoint("MyApplication. ICounterService",
binding, "net.tcp://localhost:23456")
host. Open()
This service is currently exposed over TCP, but needs to be exposed to external clients over HTTP.
Therefore, a new service endpoint is created with the following code.
host.AddServiceEndpoint(''MyApplication. lCounterService",
binding2, "http:/!localhost:12345'
You need to complete the implementation and ensure that the session-based counter will perform over HTTP as it does over TCP.
What should you do?
- A. Define binding2 as follows.
Dim binding2 As WS2007HttpBinding =
New WS200lHttpBinding(SecurityMode. None) Configure binding2 as follows.
binding2.ReliableSession.Enabled = True - B. Define binding2 as follows.
Dim binding2 As WSHttpBinding = - New WSHttpBinding(SecurityMode.None) Add the
following behavior to the service implementation. <ServceBehavior(lnstanceContextMode:
1nstanceContextMode.PerSession)s - C. Define binding2 as follows.
Dim binding2 As BasicHttpBinding = New BasicHttpBinding(BasicHttpSecurityMode. None)
add the following behavior to the service implementation.
<ServiceBehavior(lnstanceContextMode:
1nstanceContextMode.Single)> - D. Define binding2 as follows.
Dim binding2 As BasicHttpBinding = New BasicHttpBinding(BasicHttpSecurityMode.None)
Enable cookies for
binding2.
binding2.AllowCookies = True
Correct Answer: A 🗳️
You are developing a Windows Communication Foundation (WCF) service to provide an in-memory cache for many Web applications. The service contract is defined as follows. (Line numbers are included for reference only.)
01 <ServiceContract()> 02 Public Interface IDataCache 03
04 . . . 05 End Interface 06 07 08 Public Class DataCache 09 Implements IDataCache 10
11 . . . 12 End Class
You need to ensure that all users share the cache.
Which code segment should you insert at line 07?
- A. <ServiceBehavior(TransactionIsolationLevel:= IsolationLevel.ReadCommitted)>
- B. <ServiceBehavior(InstanceContextMode:= InstanceContextMode.Single)>
- C. <ServiceBehavior(TransactionIsolationLevel:= IsolationLevel.RepeatableRead)>
- D. <ServiceBehavior (InstanceContextMode : = InstanceContextMode.PerSession)>
Correct Answer: B 🗳️
You are creating an application using Visual Studio 2010. The application consumes a Windows Communication Foundation (WCF) service.
You are adding a service reference to the WCF service.
You need to ensure that the generated proxy does not block the calling thread when executing a service method.
What should you do when adding the service reference?
- A. Select the Generate asynchronous operations option.
- B. Select the Reuse types in all referenced assemblies option.
- C. Select the Always generate message contracts option.
- D. Set the Collection type to ObservableCollection.
Correct Answer: A 🗳️
A Windows Communication Foundation (WCF) application uses the following data contract.
You need to ensure that the following XML segment is generated when the data contract is serialized.
Which code segment should you use?
- A. <DataMember(EmitDefaultValue:=False)>
Public firstName As String = Nothing
<DataMember(EmitDefaultValue:=False)>
Public lastName As String = Nothing
<DataMember(EmitDefaultValue:=True)>
Public age As Integer = -1
<DataMember(EmitDefaultValue:=False)>
Public ID As Integer = 999999999 - B. <DataMember(EmitDefaultValue:=True)>
Public firstName As String
<DataMember(EmitDefaultValue:=True)>
Public lastName As String
<DataMember
(EmitDefaultValue:=False)>
Public age As Integer = -1
<DataMember(EmitDefaultValue:=False)>
Public ID As Integer = 999999999 - C. <DataMember()>
Public firstName As String
<DataMember()>
Public lastName As String
<DataMember(EmitDefaultValue:=True)>
Public age As Integer = 0 <DataMember(EmitDefaultValue:=True)> Public ID As Integer = 999999999 - D. <DataMember()>
Public firstName As String = Nothing
<DataMember()>
Public lastName As String = Nothing
<DataMember(EmitDefaultValue:=False)>
Public age As Integer = 0
< DataMember(EmitDefaultValue:=False)>
Public ID As Integer = 999999999
Correct Answer: D 🗳️
You are creating a Windows Communication Foundation (WCF) service. The service endpoints change frequently.
On the service, you add a new ServiceDiscoveryBehavior to the Behaviors collection of the ServiceHost Description property.
You need to ensure that client applications can communicate with the service and discover changes to the service endpoints.
What should you do?
- A. Add a new ServiceDiscoveryBehavior to the Behaviors collection in the client application.
- B. Use the FindCriteria class and the UdpDiscoveryEndpoint class to set up the binding in the client application.
- C. Use the DiscoveryProxy class and the EndpointDiscoveryMetadata class to set up the binding in the client application.
- D. Add a new AnnouncementClient to the Behaviors collection in the client application.
Correct Answer: B 🗳️
Nicholas -
Excellent study guide for my 070-513 exam preparation! Passed it this morning! Thank you!