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

1. A service implements the following contract. (Line numbers are included for reference only.)

The service is implemented as follows.

ContosoService uses NetMsmqBinding to listen for messages. The queue was set up to use transactions for adding and removing messages.
You need to ensure that OperationOne and OperationTwo execute under the same transaction context when they are invoked in the same session.
What should you do?

A) Insert the following attribute to OperationOne on ContosoService.
[OperationBehavior(TransactionScopeRequired = true,
TransactionAutoComplete = false)]
Insert the following attribute to OperationTwo on ContosoService.
[OperationBehavior(TransactionScopeRequired = true, TransactionAutoComplete = true)]
B) Add the following XML segment to the application config file in the
system.serviceModel/bindings configuration section.
<netMsmqBinding>
<binding name="contosoTx" durable="true" receiveContextEnabled="true" />
</netMsmqBinding>
Then use the NetMsmqBinding named contosoTx to listen for messages from the clients.
C) Insert the following attribute to OperationOne on IContosoService.
[TransactionFlow(TransactionFlowOption.Mandatory)]
Insert the following attribute to OperationTwo on IContosoService.
[TransactionFlow(TransactionFlowOption.Mandatory)]
D) Add the following XML segment to the application config file in the
system.serviceModel/bindings configuration section.
<customBinding>
<binding name="contosoTx">
<transactionFlow />
<binaryMessageEncoding />
<msmqTransport durable="true" />
</binding>
</customBinding>
Then use the CustomBinding named contosoTx to listen for messages from the clients.

2. You are developing a Windows Communication Foundation (WCF) service. You establish that the largest size of valid messages is 8,000 bytes. You notice that many malformed messages are being transmitted.
Detailed information about whether each message is malformed must be logged.
You need to ensure that this information is saved in XML format so that it can be easily analyzed.
What should you add to the service configuration file?

A) <messageLogging logEnt ireMessage="true" logHalformedMessages="true" logMessagesAtServiceLevel="true" logMessagesAtTranspoctLevel="true" maxMessagesToLog="1000" maxSizeOfMessageToLog="100000"/>
B) <roessageLogging logEntireMessage="true" logNalformedMessages="false" logMessagesAtServiceLeve1="true" logMessagesAtTransportLevel="true" maxMessagesToLog""1000"/>
C) <message Logging logEntireMessage="true" logHalformedMessages""false" logMessagesAtServiceLevel-"true" logMessagesAtTransportLevel-"true" maxMessagesToLog="1000" maxSizeOfMessageToLog="8000"/>
D) <messageLogging logMessagesAtServiceLevel="true" logMessagesAtTransportLevels"true" maxMessagesToLog="1000" maxSizeOfMessageToLog="8000"/>

3. You implement a Windows Communication Foundation (WCF) service.
You must process all of the valid SOAP messages that the service receives.
What should you do?

A) On the OperationContractAttribute, call the Match method.
B) On the OperationContractAttribute of a method, set the value of the Action and ReplyAction properties to *.
C) On the OperationContractAttribute of a method, set the value of the Action and ReplyAction properties to ?.
D) Call the Message.CreateMessage static method. Pass the value MessageVersion.Default as a parameter.

4. 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) HttpsTransportBindingElement
B) WindowsStreamSecurityBindingElement
C) SslStreamSecuntyBindingElement
D) TransportSecurityElement

5. A Windows Communication Foundation (WCF) service that handles corporate accounting must be changed to comply with government regulations of auditing and accountability.
You need to configure the WCF service to execute under the Windows logged-on identity of the calling application.
What should you do?

A) Within the service configuration, add a serviceCredentials behavior to the service, and set type to Impersonate.
B) Within the service configuration, add a serviceAuthorization behavior to the service, and set impersonateCallerForAllOperations to true.
C) Within the service configuration, add a serviceSecurityAudit behavior to the service, and set serviceAuthorizationAuditLevel to SuccessOrFailure.
D) Within the service configuration, add a serviceAuthenticationManager behavior to the service, and set serviceAuthenticationManagerType to Impersonate.

Solutions: