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

1. You are creating a Windows Communication Foundation client application by using Microsoft .NET Framework 3.5.
You need to inspect the parameters on the client application.
Which three actions should you perform? (Each correct answer presents part of the solution. Choose three.)

A) Implement the ICIientMessagelnspector interface.
B) Insert a code segment that creates a behavior in the ICallContextlnitializer.BeforelnvokeO method.
C) Insert a behavior before you call the ClientBase.Open method.
D) Implement the lEndpointBehavior behavior to add the parameter inspector to the Dispatcher. DispatchOperation.Parameterlnspectors method.
E) Implement the IParameterlnspector interface.
F) Implement the lEndpointBehavior behavior to add the parameter inspector to the Dispatcher. ClientOperation.Parameterlnspectors method.

2. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. You write the following code segment. (Line numbers are included for reference only.)

If the existing operation contract is unable to process a request made to the service, a generic operation contract must attempt to process the request.
You need to create the generic operation contract.
Which code segment should you insert at line 08?

A) [OperationContract(Action="*")]void ProcessOthers();
B) [OperationContract(Action="Default")]void ProcessOthers(Message msg);
C) [OperationContract(Action="Default")]void ProcessOthers();
D) [OperationContract(Action="*")]void ProcessOthers(Message msg);

3. You are creating a client application by using Microsoft .NET Framework 3.5. The
application consumes an ASMX Web service.
You need to configure the binding to call the methods of the ASMX Web service.
Which binding should you use?

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

4. You are creating a Windows Communication Foundation (WCF) service by using Microsoft .NET Framework 3.5.
The WCF service must authenticate the client applications by validating credit card numbers and expiry dates. You write the following code segment. (Line numbers are included for reference only.)
01 class CreditCardTokenAuthenticator: SecurityTokenAuthenticator
02 {
03 // Implementation of other abstract methods comes here.
04 protected override ReadOnlyCollection<IAuthorizationPolicy> ValidateTokenCore(SecurityToken token)
05 {
06 CreditCardToken creditCardToken = token as CreditCardToken;
07 }
09 private bool IsCardValid(string cardNumber, 13 DateTime expirationDate)
10 {
11 // Validation code comes here.
12 }
13 }
You need to implement custom authentication for the WCF service. Which code segment should you insert at line 07?

A) if (IsCardValid(creditCardToken.CardNumber, creditCardToken.ValidTo))
return null;
else
return new List<IAuthorizationPolicy>(0).AsReadOnly();
B) if (IsCardValid(creditCardToken.CardNumber, creditCardToken.ValidTo))
return new List<IAuthorizationPolicy>(0).AsReadOnly();
else
return null;
C) if (IsCardValid(creditCardToken.CardNumber, creditCardToken.ValidTo))
return null;
else
throw new SecurityTokenValidationException();
D) if (IsCardValid(creditCardToken.CardNumber, creditCardToken.ValidTo))
throw new SecurityTokenValidationException();
else
return null;

5. You are creating a Windows Communication Foundation service by using Microsoft .NET Framework 3.5. The service contains the following binding configuration in the configuration file. (Line numbers are included for reference only.)
01 <wsHttpBinding>
02 <binding name="ssl">
04 </binding>
05 </wsHttpBinding>
You need to ensure that the following requirements are met:
Which configuration setting should you insert at line 03?

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

Solutions: