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

1. You develop a Windows Communication Foundation (WCF) RESTful service that provides media streaming services. The service includes the following code. (Line numbers are included for reference only.)

The service must return an XML response.
You need to apply the correct attribute to AddMediaTitle method.
Which code segment should you insert at line 05?

A) [WebInvolce (Method= "POST") ]
B) [WebInvolce(ResponseFormat = WebMessageFormat.Xml, BodyStyle = WebMessageBodyStyle.Wrapped)]
C) [WebInvoice]
D) [WebInvoice (ResponseFormat = WebMessageFormat.Xml, BodyStyle = WebMessageBodyStyle .Bare) ]

2. You are configuring services to be discoverable. The services must be discoverable without relying on a central server. Client applications that consume the services are on a network segment that is separate from the network segment that the services are located on.
A firewall blocks all TCP ports between the two network segments, but allows other protocols to pass through.
You need to ensure that the client applications can discover the services.
What should you do?

A) Use ad-hoc discovery mode over UDP.
B) Use ad-hoc discovery mode over HTTP.
C) Use managed discovery mode over UDP.
D) Use managed discovery mode over HTTP.

3. You are developing a Windows Communication Foundation (WCF) client application. The client application contains the following code.

The configuration file contains the following lines.

You need to ensure that the service is consumed.
Which code segment should you use?

A) Dim client As SocialClient = New SocialClient("SocialClient") client.Endpoint.Behaviors.Add( New WebHttpBehavior())
B) Dim client As SocialClient = New SocialClient("POST") client.Endpoint.Behaviors.Add( New WebScriptEnablingBehovior())
C) Dim client As SocialClienc = New SocialClienc("POST") client.Endpoint.Behaviors.Add( New WebHttpBehavior())
D) Dim client As SocialClient = New SocialClient("SocialClient") client.Endpoint.Behaviors.Add( New WebScriptEnablingBehavlor())

4. A Windows Communication Foundation (WCF) application uses the following data contract.

You need to ensure that the following XML segment is generated when the data contract is serialized.

Which code segment should you use?

A) [DataMember]
public string firstName;
[DataMember]
public string lastName;
[DataMember(EmitDefaultValue = true)]
public int age = 0 ;
[DataMember(EmitDefaultValue = true)]
public int ID = 999999999;
B) [DataMember(EmitDefaultValue = false)]
public string firstName = null;
[DataMember(EmitDefaultValue = false)]
public string lastName = null;
[DataMember(EmitDefaultValue = true)]
public int age = -1;
[DataMember(EmitDefaultValue = false)] public int ID = 999999999;
C) [DataMember]
public string firstName = null;
[DataMember] public string lastName = null;
[DataMember(EmitDefaultValue = false)] public int age = 0;
[DataMember(EmitDefaultValue = false)]
public int ID = 999999999;
D) [DataMember(EmitDefaultValue = true)]
public string firstName;
[DataMember(EmitDefaultValue = true)]
public string lastName;
[DataMember(EmitDefaultValue = false)]
public int age = -1;
[DataMember(EmitDefaultValue = false)]
public int ID = 999999999;

5. 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 ServiceCredentials behavior to the service, and set type 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 ServiceAuthenticationManager behavior to the service, and set ServiceAuthenticationManagerType to Impersonate.

Solutions: