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Microsoft 070-513 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Hosting and Deploying WCF Services | - Configuration and deployment
|
| Topic 2: WCF Security | - Security configuration
|
| Topic 3: Bindings and Messaging | - Message patterns
|
| Topic 4: Diagnostics and Troubleshooting | - Error handling
|
| 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:
1. A Windows Communication Foundation (WCF) client and service share the following service contract interface.
[ServiceContract]
public interface IContosoService {
[OperationContract]
void SavePerson(Person person);
}
They also use the following binding.
NetTcpBinding binding new NetTcpBinding { TransactionFlow = true };
The client calls the service with the following code
using (TransactionScope ts = new TransactionScope(TransactionScopeOption.Required))
{ IContosoService client = factoryCreateChannelO;
client SavePerson(person);
ConsoleWriteLine(
TransactionCurrentTransactionlnformation.
Distributedldentifier);
tsCompleteO;
}
The service has the following implementation for SavePerson
public void IContosoService SavePerson(Person person)
{ person.Saveo;
ConsoleWriteLine(TransactionCurrentTransactionlnformation.
Distributedidentifier);
}
The distributed identifiers do not match on the client and the server
You need to ensure that the client and server enlist in the same distributed transaction
What should you do?
A) Add the following attribute to the SavePerson operation on lContosoService [TransactionFlow(TransactionFlowOption Allowed)] Add the following attribute to the implementation of SavePerson. [OperationBehavior(TransactionScopeRequired true)]
B) Add the following attributes to the SavePerson operation on IContosoService.
[OperationBehavior(TransactionScopeRequired = true)]
[TransactionFlow(TransactionFlowOption.
Mandatory)]
C) Add the following attributes to the SavePerson operation on lContosoService
[TransactionFlow(TransactionFlowOption Mandatory)]
[OperationBehavior(TransactionScopeRequired true)]
D) Add the following attribute to the SavePerson operation on lContosoSernce [OperationBehavior(TransactionScopeRequired true)] Md the following attribute to the implementation of SavePerson. ITransactionFlow(TransactionFlowOptionAllowed)]
2. 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 ServiceAuthorization behavior to the service, and set ImpersonateCallerForAulOperations to true.
B) Within the service configuration, add a ServiceCredentials behavior to the service, and set type to Impersonate
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.
3. A Windows Communication Foundation (WCF) service is self-hosted in a console application.
The service implements the IDataAccess contract, which is defined in the MyApplication namespace.
The service is implemented in a class named DataAccessService, which implements the IDataAccess interface and also is defined in the MyApplication namespace.
The hosting code is as follows. (Line numbers are included for reference only.)
01 static void Main(string[] args)
02 {
03 ServiceHost host;
05 host.Open();
06 Console.ReadLine();
07 host.Close();
08 }
You need to create a ServiceHost instance and assign it to the host variable. You also need to instantiate the service host.
Which line of code should you insert at line 04?
A) host = new ServiceHost("MyApplication.DataAccessService");
B) host = new ServiceHost("MyApplication.IDataAccess");
C) host = new ServiceHost(typeof(IDataAccess));
D) host = new ServiceHost(typeof(DataAccessService));
4. A Windows Communication Foundation (WCF) service has a callback contract. You are developing a client application that will call this service.
You must ensure that the client application can interact with the WCF service.
What should you do?
A) On the client, create a proxy derived from DuplexClientBase(Of TChannel).
B) On the OperationContractAttribute, set the AsyncPattern property value to True.
C) On the OperationContractAttribute, set the ReplyAction property value to the endpoint address of the client.
D) On the client, use GetCallbackChannel (Of T).
5. 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) <roessageLogging logEntireMessage="true" logNalformedMessages="false" logMessagesAtServiceLeve1="true" logMessagesAtTransportLevel="true" maxMessagesToLog""1000"/>
B) <messageLogging logEnt ireMessage="true" logHalformedMessages="true" logMessagesAtServiceLevel="true" logMessagesAtTranspoctLevel="true" maxMessagesToLog="1000" maxSizeOfMessageToLog="100000"/>
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"/>
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: A | Question # 5 Answer: B |





