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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 developing a Windows Communication Foundation (WCF) service that contains the following code segment.
[ServiceContract ] public interface ICustomerService { & }
public class CustomerService : ICustomerService { & }
The service is self-hosted in a console application. Older client applications access the service at http://contoso.com:8080/CustomerService/V1. Newer client applications access the service at http://contoso.com:8080/CustomerService/V2.
You need to ensure that any client application can access the service at either address.
Which code segment should you use?

A) Uri serviceAddress1 =
new Uri("http://contoso.com:8080/CustomerService/V1");
Uri serviceAddress2 =
new Uri("http://contoso.com:8080/CustomerService/V2");
ServiceHost host =
new ServiceHost(typeof(ICustomerService),
new Uri[] { serviceAddress1, serviceAddress2 });
B) Uri serviceAddress1 =
new Uri("http://contoso.com:8080/CustomerService/V1");
Uri serviceAddress2 =
new Uri("http://contoso.com:8080/CustomerService/V2");
ServiceHost host =
new ServiceHost(typeof(CustomerService),
new Uri[] { serviceAddress1, serviceAddress2 });
C) Uri serviceAddress =
new Uri("http://contoso.com:8080/");
ServiceHost host =
new ServiceHost(typeof(ICustomerService),
new Uri[] { serviceAddress });
host.AddServiceEndpoint(typeof(CustomerService),
new BasicHttpBinding(), "CustomerService/V1");
host.AddServiceEndpoint(typeof(CustomerService),
new BasicHttpBinding(), "CustomerService/V2");
D) Uri serviceAddress =
new Uri("http://contoso.com:8080/");
ServiceHost host =
new ServiceHost(typeof(CustomerService),
new Uri[] { serviceAddress });
host.AddServiceEndpoint(typeof(ICustomerService),
new BasicHttpBinding(), "CustomerService/V1");
host.AddServiceEndpoint(typeof(ICustomerService),
new BasicHttpBinding(), "CustomerService/V2");

2. A self-hosted Windows Communication Foundation (WCF) service uses a secure HTTP
binding with a custom principal permission mode. The binding requires users to provide their Windows logon credentials.
You need to retrieve the identity of the caller.
What are two possible properties you can use to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

A) OperationContext.Current.ServiceSecurity Context.Primary Identity.Name
B) ServiceSecurity Context.Current.Primary Identity.Name
C) HttpContext.Current.User.Identity.Name
D) Thread.CurrentPrincipal.Identity-Name

3. A Windows Communication Foundation (WCF) service is generating a separate namespace declaration for each body member of a message contract, even though all body members share the same namespace.
You need to simplify the XML representation of your message contract so that the namespace is only declared once.
What should you do?

A) Explicitly set the Namespace property of all the MessageBodyMember attributes to the same namespace.
B) Declare all the body members as properties of a DataContract class and use the class as the only body member of the message contract.
C) Declare a wrapper namespace for the message contract by using the WrapperNamespace property of the MessageContract attribute
D) Declare all of the body members as properties of a separate MessageContract class and use the class as the only body member of the message contract.

4. You are creating a Windows Communication Foundation (WCF) service that implements operations in a RESTful manner. You need to add a delete operation.
You implement the delete method as follows.
Sub DeleteItems (ByVol id As String)
You need to configure WCF to call this method when the client calls the service with the HTTP DELETE operation.
What should you do?

A) Add the HttpDelete attribute to the operation.
B) Add the WebInvoke(UriTemplate: = "/Items/{id>", Method: = "DELETE") attribute to the operation.
C) Change the Sub statement to Function and specify RemovedActivityAction as the return type.
D) Replace the string parameter with a RemovedActivityAction parameter.

5. You are developing a Windows Communication Foundation (WCF) client application.
You instantiate a client class that inherits from ClientBase. The client instance must always be shut down in such a way that tt can free up any resources it is referencing. You need to ensure that all exceptions are caught and the instance is always properly shut
down.
Which code segment should you use?

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

Solutions: