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Microsoft 70-503 Exam Syllabus Topics:

Microsoft TS: Microsoft .NET Framework 3.5 C Windows Communication Foundation Sample Questions:

1. You are creating a client application by using Microsoft .NET Framework 3.5. The application will be accessible on the Internet.
You plan to use the wsHttpBinding binding by using HTTPS. The Windows Communication Foundation (WCF) service is hosted by a Windows service. You associate the HTTPS port of the WCF server with an X.509 certificate.
You need to ensure that the client application trusts and validates the certificate.
What should you do?

A) Derive a class from the System.IdentityModel.Selectors.X509CertificateValidator class.
Create an instance of the derived class on the server side.
Write the validation code in the public override void Validate(X509Certificate2 certificate) method.
B) Subscribe to the ServerCertificateValidationCallback event of the System.Net.ServicePointManager class.
Write the validation code in the boolValidate(object sender, X509Certificate cert, X509Chain chain. System.Net.Security .SslPolicyErrors error) event handler on the server side.
C) Derive a class from the System.IdentityModel.Selectors.X509CertificateValidator class.
Create an instance of the derived class on the client side.
Write the validation code in the public override void Validate(X509Certificate2 certificate) method.
D) Subscribe to the ServerCertificateValidationCallback event of the System.Net.ServicePointManager class.
Write the validation code in the boolValidate(object sender, X509Certificate cert, X509Chain chain. System.Net.Security.SslPolicyErrors error) event handler on the client side.

2. You are creating a distributed application by using Microsoft .NET Framework 3.5. You use Windows Communication Foundation to create the application. You plan to perform the following tasks:
You write the following code segment.

You need to ensure that only those client applications that provide credentials belonging to the AdminGroup role can access the Remove method. What should you do?

A) Add the following attribute to the Service class. <PrincipalPermission(SecurityAction.
Demand, _ Name:="Remove", Role:="AdminGroup")> _
B) Add the following attribute to the Remove method of the Service class. <PrincipalPermission(SecurityAction.Demand, Role:="AdminGroup")> _
C) Add the following attribute to the Remove method of the IService interface. <PrincipalPermission(SecurityAction.Demand, Role:="AdminGroup")> _
D) Add the following attribute to the Service class <PrincipalPermission(SecurityAction. Demand,_ Name:="IService. Remove", Role:="AdminGroup")> _

3. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment for the service contract. (Line numbers are included for reference only.)
01 [ServiceContract]
03 public class MyService
04 { 05...
06 }
The service uses transactions that time out in a minute. You need to increase the timeout interval of the transactions to 2 minutes and 30 seconds. Which code segment should you insert at line 02?

A) [ServiceBehavior(TransactionTimeout="0:2:30")]
B) [ServiceBehavior(TransactionTimeout="150")]
C) [ServiceBehaviorO"ransactionTimeout="0:150:00")]
D) [ServiceBehavior(TransactionTimeout="2:30:00")]

4. You are creating a Windows Communication Foundation service by using Microsoft .NET
Framework 3.5.
The service will be hosted on a Web server. You add the following code fragment to the
.svc file.
<% @ServiceHost factory="ExamServicefactory" Service="ExamService" %>
You need to create the instances of the services by using the custom ExamServicefactory class.
Which code segment should you use?

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

5. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You need to programmatically add the following endpoint 49 http://www.abc.com definition to the service.
http://localhost:8000/ExamService/service Which code segment should you use?

A) Dim baseAddress As String = _"http: //localhost:8000/ExamService/service"Dim bindingl
As New NetTcpBindingQUsing host As New ServiceHost(GetType(ExamService))
host.AddServiceEndpoint(GetType(IExam),
bindingl, baseAddress)End Using
B) Dim baseAddress As String = _ "http: //localhost:8000/ExamService/service"Dim bindingl As New BasicHttpBindingQUsing host As New ServiceHost(GetType(ExamService)) host.AddServiceEndpoint(GetType(IExam), bindingl, baseAddress)End Using
C) Dim baseAddress As String = "http: //localhost:8000/ExamService"Dim bindingl As New WSHttpBindingQUsing host As New ServiceHost(GetType (ExamService)) host.AddServiceEndpoint(GetType(IExam), bindingl, baseAddress)End Using
D) Dim baseAddress As String = "http: //localhost:8000/ExamService"Dim bindingl As New BasicHttpBindingQUsing host As New ServiceHost(GetType (ExamService)) host.AddServiceEndpoint(GetType(IExam), bindingl, baseAddress)End Using

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