You want to upgrade a ASMX webservice to WCF, but you want to support legacy client applications.
<some code here>
What code do you use to transfer binary data from the server to the client?

• A. BindingElement encoding = new BindingElement()
• B. BindingElement encoding = new MtomMessageEncodingBindingElement(.....)
• C. BindingElement encoding = new TextMessageEncodingBindingElement (Soap12WSAddressingAugust2004..)
• D. BindingElement encoding = new TextMessageEncodingBindingElement(MessageVersion.Soap11.....)

You are creating a distributed application with Windows Communication Foundation by using Microsoft .NET Framework 3.5.
The distributed application topology includes client applications, routers, and services. Communication between the client applications and the services require authentication, confidentiality, and integrity.
You need to ensure that routers are not able to read the contents of the messages. You must achieve this goal without customizing the binding configuration.
Which binding should you use?

• A. NetPeerTcpBinding
• B. NetNamedPipeBinding
• C. NetTcpBinding
• D. WSHttpBinding

You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
The service will authenticate the client applications by using Personal Information Cards.
You write the following code segment. (Line numbers are included for reference only.)
01 public class CustomServiceAuthorizationManager:
02 ServiceAuthorizationManager{
03 protected override bool CheckAccessCore(OperationContext operationContext)
04 {
05 string action = operationContext.RequestContext.RequestMessage.Headers.Action;
06 if (action == "http://tempuri.org/lEnginefUpdate")
07 {
06 foreach (ClaimSet cs in
operationContext.ServiceSecurityContext.AuthorizationContext.ClaimSets)
09 {
10
11
12 return false;
13 }
14 return true;
15 }
16 } ...
17 bool IsEmailValid(string email)
18 {
19 //e-mail validation is performed here;
20 return true;
21 }
You need to ensure that only those client applications that provide a valid email address can execute the Update method.
Which code segment should you insert at line 10?

• A. foreach (Claim c in
  cs.FindClaims("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress",
  "PossessProperty"))
  return IsEmailValid(c.Resource.ToString());
• B. foreach (Claim c in
  cs.FindClaims("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress",
  String.Empty))
  return IsEmailValid(c.Resource.ToString());
• C. foreach (Claim c in
  cs.FindClaims("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress",
  Rights.PossessProperty))
  return IsEmailValid(c.Resource.ToString());
• D. foreach (Claim c in
  cs.FindClaims("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress",
  Rights.Identity))
  return IsEmailValid(c.Resource.ToString());

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 need to ensure that the service is able to access the current HttpContext instance. Which configuration settings and attribute should you use?

• A. Option B
• B. Option A
• C. Option D
• D. Option C