韦伯认为，任何组织都必须有其作为基础的某种形式的（)。A．职责B．制度C．管理D．权力

You are creating an application that consumes a Windows Communication Foundation (WCF) service. The service implements the IService contract. The client application contains the CallbackHandler class, which implements IServiceCallback.You need to ensure that a client proxy is created that can communicate with the service over a duplex channel.Which code segment should you use？（）

A.

B.

C.

D.

You are creating a Windows Communication Foundation (WCF) service that uses claims-based authorization. The following code retrieves the correct claim set.var claims = ServiceSecurityContext.Current.AuthorizationContext.ClaimSets[0];You need to validate that the requesting client application has included a valid DNS value in the claim.Which code segment should you use to retrieve the claim for validation？（）

A. claims.FindClaims(ClaimTypes.Dns, Rights.PossessProperty).FirstOrDefault();

B. claims.FindClaims(ClaimTypes.Dns, Rights.Identity).FirstOrDefault();

C. claims.ContainsClaim(Claim.CreateDnsClaim(ClaimTypes.Dns));

D. claims.Equals(ClaimTypes.Dns);

A．NetTcpContextBinding

B． BasicHttpContextBinding

C． NetTcpBinding

D． NetMsmqBinding

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:void DeleteItems(string id);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 WebInvoke(UriTemplate="/Items/{id}", Method="DELETE") attribute to the operation

B. Add the HttpDelete atribute to the operation

C. Replace the string parameter with a RemovedActivityAction parameter

D. Replace the return type with RemovedActivityAction.

You are creating a Windows Communication Foundation (WCF) service. You have the following requirements: Messages must be sent over TCP The service must support transactions. Messages must be encoded using a binary encoding Messages must be secured using Windows stream-based security.You need to implement a custom binding for the service. In which order should the binding stack be configured？（）

A. tcp Transport, windows Stream Security, transaction Flow, binary Message Encoding

B. transaction Flow, binary Message Encoding, windows Stream Security, tcp Transport

C. windows Stream Security, tcp Transport, binary Message Encoding, transaction Flow

D. binary Message Encoding, transaction Flow, tcp Transport, windows Stream Security

You are creating a Windows Communication Foundation (WCF) service that responds using plain-old XML (POX).You have the following requirements: You must enable the /catalog.svc IItems operation to respond using the POX, JSON, or ATOM formats. You also must ensure that the same URL is used regardless of the result type. You must determine the response format by using the Accepts HTTP header.What should you do？（）

A. Implement the IChannelInitializer interface in the service class.

B. Implement the System.Runtime.Serialization.IFormatterConverter interface in the service class.

C. Set the BodyStyle parameter of the WebGet attribute on the operation to WebMessageBodyStyle.WrappedResponse.

D. Set the retum type of the operation to System.ServiceModel.Channels.Message. Use the current WebOperationContext methods to return the data in the required format.

You are creating a Windows Communication Foundation (WCF) service. The service endpoints change frequently. On the service, you add a new ServiceDiscoveryBehavior to the Behaviors collection of the ServiceHost Description property. You need to ensure that client applications can communicate with the service and discover changes to the service endpoints.What should you do？（）

A. Add a new ServiceDiscoveryBehavior to the Behaviors collection in the client application.

B. Add a new AnnouncementClient to the Behaviors collection in the client application.

C. Use the FindCriteria class and the UdpDiscoveryEndpoint class to set up the binding in the client application.

D. Use the DiscoveryProxy class and the EndpointDiscoveryMetadata class to set up the binding in the client application.

You are creating a Windows Communication Foundation (WCF) service based on WSHttpBinding. New audit requirements dictate that callers must be authenticated on every call to ensure that their credentials have not been revoked.You need to ensure that the service will not cache the security request token. What should you do？（）

A. Apply a ServiceBehavior attribute to the service implementation class with the lnstanceContextMode property set to Single.

B. In the message security configuration, change clientCredentialType from lssuedToken to UserName

C. In the message security configuration, set establishSecurityContext to false.

D. At the end of every operation, call the SessionStateUtility.RaiseSessionEnd method.

You are creating a Windows Communication Foundation (WCF) service that accepts claims-based tokens. You need to ensure that the service can use claims from trading partners even though there are variations on naming for the same elements.Which two actions should you perform？ (Each correct answer presents part of the solution. Choose two.)（）

A. Register a custom Service Authorization Manager that implements Check Access. In this method, use System.Convert.ChangeType to transform the incoming claim set to a WindowsClaimSet type.

B. Apply a PrincipalPermission attribute on the operation with the required claims listed in the Roles property.

C. Within the operation, verify the presence of the required claims in the current AuthorizationContext.

D. Register an AuthorizationPolicy that maps external claims to an internal ClaimSet.

You are creating a Windows Communication Foundation (WCF) service that implements the following service contract.[ServiceContract]public interface IOrderProcessing { [OperationContract] void ApproveOrder(int id);}You need to ensure that only users with the Manager role can call the ApproveOrder method. What should you do？（）

A. In the method body, check the Rights PosessesProperty property to see if it contains Manager

B. Add a PrincipalPermission attribute to the method and set the Roles property to Manager

C. Add a SecurityPermission attribute to the method and set the SecurityAction to Demand

D. In the method body, create a new instance of WindowsClaimSet. Use the FindClaims method to locate a claimType named Role with a right named Manager