Services are groups of operations. To create a service contract you usually model operations and specify their grouping. In Windows Communication Foundation (WCF) applications, developers define the operations by creating a method and marking it with the which attribute?
A. ServiceContractAttribute
B. DataMemberAttribute
C. DataContractAttribute
D. OperationContractAttribute
Answer:D
Services are groups of operations. To create a service contract you usually model operations and specify their grouping. In Windows Communication Foundation (WCF) applications, developers define the operations by creating a method and marking it with the which attribute?
A. ServiceContractAttribute B. DataMemberAttribute C. DataContractAttribute D. OperationContractAttribute