Question 6 : 70-503 MCTS Windows Communication Foundation | Free practice exams

Question 6

You have created a new class which will be the basis for a Service Contract. You have used ServiceContractAttribute and OperationContractAttribute to decorate the class and the methods. Which of the following is NOT an advantage of using classes instead of interfaces for Service Contracts?

Speed

All of these are disadvantages

Simplicity

Multiple Inheritance

Managed classes do not support multiple inheritance, and as a result they can only implement one service contract at a time. In addition, any modification to the class or method signatures modifies the public contract for that service, which can prevent unmodified clients from using your service

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