Which of the following is not a characteristic of WSDL?

The correct choice identifies a critical aspect of WSDL (Web Services Description Language). WSDL is an XML-based language used for describing the functionalities offered by web services. It serves several important purposes:

• It defines the services offered by describing each service's operations and what it can provide. This allows potential consumers to understand what capabilities the service has.

• It outlines how to access these services, providing details such as the protocol used for communication (e.g., HTTP, SOAP) and the service's endpoint.

• It specifies the message formats, detailing the structure of the messages that will be exchanged between the client and the server, usually in XML format.

In contrast, WSDL does not contain the server's source code. Its purpose is to describe web services at a high level rather than provide implementation details. By focusing on the description of services and communication protocols, it allows different applications to interact with web services without exposing inner workings like the actual code or algorithms implemented on the server side.