Microsoft 70-513 : TS: Windows Communication Foundation velopment with Microsoft .NET Framework 4

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

1. A Windows Communication Foundation (WCF) service exposes two operations: OpA and OpB OpA needs to execute under the client's identity, and OpB needs to execute under the service's identity.
You need to configure the service to run the operations under the correct identity
What should you do?

A) Set the ImpersonateCallerForAllOperations property of the service's
ServiceAuthorizationBehavior to false.
Apply an OperationBehavior attribute to OpA and set the Impersonation property to
lmpersonationOption.Required.
Apply an OperationBehavior attribute to OpB and set the Impersonation property to
ImpersonationOption.Allowed.
B) Set the ImpersonateCallerForAllOperations property of the service's ServiceAuthorizationBehavior to true. Apply an OperationBehavior attribute to OpA and set the Impersonation property to ImpersonationOption Required Apply an OperationBehavior attribute to OpB and set the Impersonation property to ImpersonationOptionAulowed.
C) Set the ImpersonateCallerForAllOperations property of the service's
ServiceAuthorizationBehavior to false.
Apply an OperationBehavior attribute to OpA and set the Impersonation property to
ImpersonationOptionAllowed.
Apply an OperationBehavior attribute to OpB and set the Impersonation property to
ImpersonationOption
NotAllowed
D) Set the ImpersonateCallerForAllOperations property of the service's
ServiceAuthorizationBehavior to true.
Apply an OperationBehavior attribute to OpA and set the Impersonation property to
ImpersonationOption.Allowed
Apply an OperationBehavior attribute to OpB and set the Impersonation property to
ImpersonationOption
NotAllowed

2. 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) 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
B) Dim handler = New CallbackHandler()
Dim clientFactory =
New DuplexChannelFactory( Of IService)(
GetType(CallbackHandler),
New USDualHttpBindingO )
Dim client = clientFactory.CreateChannel(
New InstanceContext (handler) ,
New EndpointAddress ("") )
C) Dim handler - New CallbackHandler()
Dim clientFactory =
New DuplexChannelFactory(Of IService)(
GetType(CallbackHandler),
New HSDualHttpBindingO) Dim client = clientFactory.CreateChannel( New
EndpointAddress ("") )
D) Dim handler = New CallbackHandler()
Dim clientFactory =
New DuplexChannelFactory(Of IService)(
New WSHttpContextBinding() )
Dim client = clientFactory.CreateChannel( New InstanceContext(handler),
New EndpointAddress (""))
E) Dim handler = New CallbackHandler()
Dim clientFactory =
New DuplexChannelFactory(Of IService)( New WSHttpBinding())
Dim client = clientFactory.CreateChannel(
New InstanceContext(handler),
New EndpointAddress (""))

3. You have a Windows Communication Foundation (WCF) service that accepts the following message contract.

You need to ensure that the client sends a SOAP body that is accepted by the service.

A) <Ticket xmlns="http://www.movietheater.com"> <ShowTime
xmlns="http : //www.movietheater . com">
2010-07-05T00:51:10.0999304-05:00
</ShowTime>
<ReservationName xmlns="http://www.movietheater.com" />
<NumberOfSeats
xmlns="http://www.movietheater.com">
</NumberOfSeats>
</Ticket>
B) <Ticket xmlns="http://wwv.movies.com">
<ShowTime
xmlns-"http://www.movietheatec.com">
2010-07-05TOO:51:10.0999304-05:00
</ShowTime>
<Number Of Seats
xmlns="http://www.movietheater.com"> 0
</NumbecOfSeats>
<ReservationName xmlns""http://www.movietheotec.com" />
</Ticket>
C) <Ticket xmlns="http://www.movies. com">
<NumberOfSeats
xmlns="http : //www.movietheater . com">
</NumberOfSeats>
<ReservationName xmlns="http://www.movietheater .com" />
<ShowTime
xmlns="http://www.movietheater.com">
2010-07-05T00:SI:10.0999304-05:00
</ShowTime>
</Ticket>
D) <Ticket xmlns="http://www. movietheatec.com">
<ShowTime
xmlns-"http://www.movietheater.com">
2010-07-05TOO:51:10.0999304-05:00
</ShowTime>
<NumberOfSeats
xmlns="http://wwv.movietheatec.com"> 0
</NumberOfSeats>
<ReservationName
xmlns="http://www.movletheatec.com" />
</Ticket>

4. You are modifying a Windows Communication Foundation (WCF) service that allows customers to update financial data. The service currently requires a transaction from the client application and is working correctly. The service contract is defined as follows. (Line numbers are included for reference only.)

The service must be modified so that client applications do not need to initiate a transaction when calling the operation. The service must use the client application's transaction if one is available. Otherwise it must use its own transaction.
You need to ensure that the service operation is always executed within a transaction.
What should you do?

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

5. An existing Windows Communication Foundation (WCF) service uses basicHttpBinding. You are releasing updates to the service and the client application.
You need to enable the client application to flow transactions to the service.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

A) Change to a custom binding that has the transactionFlow, textMessageEncoding, and httpTransport binding elements in this order.
B) Change to a custom binding that has the httpTransport, textMessageEndcoding, and transactionFlow binding elements in this order.
C) Change the binding to use wsHttpBinding.
D) Change the binding to use basicHttpContextBinding.

Solutions: