1. In WCF, what is the purpose of the DataContract attribute?
Explanation: The DataContract attribute is used to mark a class as serializable for data exchange in WCF.
Report for correction2. In WCF, what is the role of the InstanceContextMode attribute?
Explanation: The InstanceContextMode attribute is used to configure the instance context mode for the service in WCF.
Report for correction3. What does the term "ABC" stand for in the context of WCF?
Explanation: In WCF, "ABC" stands for Address, Binding, and Contract, which are essential elements in defining a service.
Report for correction4. What does WCF stand for?
Explanation: WCF stands for Windows Communication Foundation, a framework for building service-oriented applications.
Report for correction5. What is the primary protocol used for communication in WCF?
Explanation: HTTP is the primary protocol used for communication in WCF, although other protocols can be used.
Report for correction6. What is the primary purpose of WCF services?
Explanation: WCF services are primarily used for enabling communication between different applications or components.
Report for correction7. What is the purpose of the app.config (or web.config) file in a WCF service?
Explanation: The app.config or web.config file is used to configure various settings for the WCF service.
Report for correction8. What is the purpose of the CallbackContract attribute in a duplex WCF service?
Explanation: The CallbackContract attribute is used to define the callback interface for the client in a duplex WCF service.
Report for correction9. What is the purpose of the MessageContract attribute in WCF?
Explanation: The MessageContract attribute is used to customize the message structure in WCF.
Report for correction10. What is the purpose of the Metadata Exchange (MEX) endpoint in WCF?
Explanation: The Metadata Exchange (MEX) endpoint in WCF exposes metadata about the service, allowing clients to discover its capabilities.
Report for correction11. What is the purpose of the ServiceKnownType attribute in WCF?
Explanation: The ServiceKnownType attribute is used to define the known types used in the service.
Report for correction12. What is the purpose of the WSDL (Web Services Description Language) in WCF?
Explanation: WSDL describes the service contract and its methods, allowing clients to understand how to interact with the service.
Report for correction13. What is the role of the OperationContract attribute in WCF?
Explanation: The OperationContract attribute is used to mark a method as an operation in a service contract in WCF.
Report for correction14. What is the role of the ServiceContract attribute in WCF?
Explanation: The ServiceContract attribute is used to mark an interface as a service contract in WCF.
Report for correction15. Which binding type in WCF is suitable for interoperability with non-WCF clients?
Explanation: BasicHttpBinding is a suitable choice for interoperability with non-WCF clients, as it uses basic web service standards.
Report for correction16. Which binding type is suitable for creating WCF RESTful services?
Explanation: WebHttpBinding is suitable for creating WCF RESTful services.
Report for correction17. Which binding type is suitable for high-performance, secure, and reliable communication within the same corporate network?
Explanation: NetTcpBinding is suitable for high-performance, secure, and reliable communication within the same corporate network.
Report for correction18. Which communication pattern allows the client to send requests to the service and receive responses?
Explanation: The Request-Reply communication pattern allows the client to send requests to the service and receive responses.
Report for correction19. Which message exchange pattern is used for one-way communication in WCF?
Explanation: The One-way message exchange pattern is used for one-way communication in WCF.
Report for correction20. Which of the following is NOT a valid WCF binding type?
Explanation: FtpBinding is not a valid binding type in WCF.
Report for correction21. Which programming languages can be used to create WCF services?
Explanation: WCF supports multiple programming languages, including C# and VB.NET.
Report for correction22. Which security mode in WCF does not provide any security features?
Explanation: The "None" security mode in WCF does not provide any security features.
Report for correction23. Which security mode in WCF provides message-level security with encryption and authentication?
Explanation: Message security mode in WCF provides message-level security with encryption and authentication.
Report for correction24. Which security mode provides end-to-end security in WCF?
Explanation: The Certificate security mode provides end-to-end security in WCF.
Report for correction25. Which WCF binding is suitable for transmitting binary data efficiently?
Explanation: NetNamedPipeBinding is suitable for transmitting binary data efficiently in WCF.
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