Microsoft 70-513

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

1. You have an existing Windows Communication Foundation (WCF) service that exposes a service contract over HTTP using explicit binding configuration.
You need to expose that contract over HTTP and TCP.
What should you do?

A) Add a binding configuration to the existing endpoint named netTcpBinding.
B) Add an endpoint configured with a netTcpBinding.
C) Add a net.tcp base address to the host.
D) Add an endpoint behavior named netTcpBehavior to the existing endpoint.

2. You are using windows Communication Foundation (WCF) to create a service. You need to implement a custom message-level security binding element Which binding element should you use?

A) SslStreamSecuntyBindingElement
B) WindowsStreamSecurityBindingElement
C) HttpsTransportBindingElement
D) TransportSecurityElement

3. You are creating an application that consumes a Windows Communication Foundation
(WCF) service. The service implements the IService contract. The client application contains the CallbackHandler class, which implements IServiceCallback.
You need to ensure that a client proxy is created that can communicate with the service over a duplex channel.
Which code segment should you use?

A) Dim handler = New CallbackHandler()
Dim clientFactory =
New DuplexChannelFactory(Of IService)(
New WSHttpContextBinding() )
Dim client = clientFactory.CreateChannel( New InstanceContext(handler),
New EndpointAddress (""))
B) Dim handler = New CallbackHandler()
Dim clientFactory =
New DuplexChannelFactory(Of IService)( New WSHttpBinding())
Dim client = clientFactory.CreateChannel(
New InstanceContext(handler),
New EndpointAddress (""))
C) Dim handler = New CallbackHandler()
Dim clientFactory =
New DuplexChannelFactory( Of IService)(
GetType(CallbackHandler),
New USDualHttpBindingO )
Dim client = clientFactory.CreateChannel(
New InstanceContext (handler) ,
New EndpointAddress ("") )
D) Dim handler - New CallbackHandler()
Dim clientFactory =
New DuplexChannelFactory(Of IService)(
GetType(CallbackHandler),
New HSDualHttpBindingO) Dim client = clientFactory.CreateChannel( New
EndpointAddress ("") )
E) Explanation:
QUESTIO NO: 98 You develop a Windows Communication Foundation (WCF) service. It is used exclusively as an intranet application and is currently unsecured.
You need to ensure that the service meets the following requirements:
---
The service now must be exposed as an Internet application. The service must be secured at the transport level. Impersonation and delegation cannot be enabled.
What should you use?
A. basicHttpBinding and HTTP
B. basicHttpBinding and Kerberos
C. wsHttpBinding and Kerberos
D. wsHttpBinding and HTTPS

4. You are developing a Windows Communication Foundation (WCF) service that is hosted by a Windows Forms application.
The ServiceHost instance is created in the Form constructor.
You need to ensure that the service is not blocked while the UI thread is busy.
What should you do?

A) Decorate the service implementation class with the following line of code.
[ServiceBehavior(
ConcurrencyMode = ConcurrencyMode.Multiple)]
B) Call the BeginInvoke method of the form and supply a delegate.
C) Call the Invoke method of the form and supply a delegate.s
D) Decorate the service implementation class with the following line of code.
[ServiceBehavior(
UseSynchronizationContext = false)]

5. You develop a Windows Communication Foundation (WCF) service that is hosted by using
Windows Activation Services (WAS).
You need to configure the service to accept requests that use the TCP/IP protocol.
What should you do? (Each correct answer presents part of the solution. Choose two.)

A) Run the aspnet_regiis executable to enable TCP/IP service activation.
B) In Control Panel, enable the Windows Communication Foundation HTTP Activation feature.
C) Run the appcmd executable to enable TCP/IP service activation.
D) In Control Panel, enable the WCF Non-HTTP Activation feature.

Solutions: