MCSD Windows Communication Foundation (WCF)

Question 1

Which three core components form the ABC of WCF service configuration?

Accepted Answer

Address, Binding, Contract

Answer

Authentication, Binding, Connection

Answer

Address, Behavior, Configuration

Answer

Attribute, Binding, Channel

Question 2

Which attribute is used to mark an interface as a WCF service contract?

Accepted Answer

[ServiceContract]

Answer

[ServiceBehavior]

Answer

[OperationContract]

Answer

[DataContract]

Question 3

Which WCF binding is optimized for cross-machine communication over HTTP and interoperability with non-.NET clients?

Accepted Answer

BasicHttpBinding

Answer

NetTcpBinding

Answer

NetNamedPipeBinding

Answer

WSDualHttpBinding

Question 4

Which WCF binding provides the highest performance for same-machine inter-process communication?

Accepted Answer

NetNamedPipeBinding

Answer

BasicHttpBinding

Answer

WSHttpBinding

Answer

NetTcpBinding

Question 5

What does the [OperationContract] attribute designate in a WCF service?

Accepted Answer

A method that is part of the service contract

Answer

A property exposed in the service metadata

Answer

A data structure transferred between client and service

Answer

A behavior applied to the service host

Question 6

Which class is used to self-host a WCF service in a .NET application?

Accepted Answer

ServiceHost

Answer

WebServiceHost

Answer

ChannelFactory

Answer

ServiceEndpoint

Question 7

Which WCF message exchange pattern allows the service to send messages back to the client without the client initiating a request?

Accepted Answer

Duplex

Answer

Request-Reply

Answer

One-Way

Answer

Streaming