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Microsoft 70-513 Exam Syllabus Topics:

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

1. You are creating a Windows Communication Foundation (WCF) service based on WSHttpBinding. New audit requirements dictate that callers must be authenticated on every call to ensure that their credentials have not been revoked.
You need to ensure that the service will not cache the security request token.
What should you do?

A) In the message security configuration, change clientCredentialType from IssuedToken to UserName.
B) In the message security configuration, set establishSecurityContext to false.
C) Apply a ServiceBehavior attribute to the service implementation class with the InstanceContextMode property set to Single.
D) At the end of every operation, call the SessionStateUtility.RaiseSessionEnd method.

2. You are developing a Windows Communication Foundation (WCF) service.
The service operation takes a customer number as the only argument and returns information about the customer.
The service requires a security token in the header of the message.
You need to create a message contract for the service.
Which code segment should you use?

A) [ServiceContract]
public interface IService
{
[OperationContract]
CustomerInformation GetCustomerInformation(Header header,
int customerNumber);
}
[DataContract]
public class CustomerInformation
{
.......
}
[MessageContract]
public class Header { [MessageHeader] public string SecurityTag;
}
B) [ServiceContract]
public interface IService {
[OperationContract]
CustomerInformation GetCustomerInformation( CustomerNumber request);
}
[DataContract]
public class CustomerInformation { } [MessageContract] public class CustomerNumber {
[MessageHeader]
public string SecurityTag; [MessageBodyMember] public int CustomerNumberElement; }
C) [ServiceContract]
public interface IService
{ [OperationContract]
CustomerInformation GetCustomerInformation(Header header,
int customerNumber);
} [MessageContract] public class CustomerInformation { } [MessageContract] public class
Header { [MessageHeader] public string SecurityTag; }
D) [ServiceContract]
public interface IService
{
[OperationContract]
CustomerInformation GetCustomerInformation(
CustomerNumber request);
}
[MessageContract]
public class CustomerInformation
{
......
}
[MessageContract] public class CustomerNumber
{
[MessageHeader]
public string SecurityTag;
[MessageBodyMember]
public int CustomerNumberElement;
}

3. 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 ServiceAuthenticationManager behavior to the service, and set ServiceAuthenticationManagerType to Impersonate.
B) Within the service configuration, add a serviceSecurityAudit behavior to the service, and set serviceAuthorizationAuditLevel to SuccessOrFailure
C) Within the service configuration, add a ServiceAuthorization behavior to the service, and set ImpersonateCallerForAulOperations to true.
D) Within the service configuration, add a ServiceCredentials behavior to the service, and set type to Impersonate

4. A WCF service code is implemented as follows. (Line numbers are included for reference only.)
01 [ServiceContract] 02 [ServiceBehavior(InstanceContextMode = 03 InstanceConcextMode.Single)]
04 public class CalculatorService
05 {
06 [OperacionContract]
07 public double Calculate(double opl, string op, double op2)
08 {
...
24 }
25 }
You need to decrease the response time of the service.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

A) Change the service behavior to the following.
[ServiceBehavior(InstanceContextMode = InstanceContextMode.PerCall) ]
B) Require the clients use threads, the Parallel Task Library, or other mechanism to issue
service calls in parallel.
C) Change the service behavior to the following.
[ServiceBehavior(
InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode =
ConcurrencyMode.Multiple) ]
D) Require the clients to use async operations when calling the service.

5. You develop a Windows Communication Foundation (WCF) service that includes the following code. (Line numbers are included for reference only.)

ServiceB must not accept reentrant service calls. You need to modify the behavior of the service. What should you do?

A) Replace the code segment at line 01 with the following code segment: <ServiceBehavior (InstanceContextMode:=InstanceContextMode.Single) >
B) Insert the following code segment at line 07: <ServiceBehavior(ConcurrencyMode:=ConcurrencyMode.Multiple)>
C) Insert the following code segment at line 07: <ServiceBehavior(ReleaseServiceOnTransactionTransactionComplete:=True)>
D) Insert the following code segment at line 07: <ServiceBehavior(ReleaseServiceInstanceOnTransactionComplete:=False)>

Solutions: