Which of the following statements is true? Select the correct answer.

Question

Options

• AWSDL definitions can use XML schemas to define the types used by WSDL input and output
• BWSDL definitions can use XML schemas to define the types used by WSDL input and output
• CWSDL definitions can use XML schemas to define the types used to establish the location used
• DWSDL definitions cannot be used in conjunction with XML schemas.

• A
  92% (22)
• B
  4% (1)
• C
  4% (1)

Explanation

A is correct because WSDL (Web Services Description Language) uses a <types> element specifically designed to host XML Schema definitions, allowing services to define the complex data types used in their input and output messages. This is a core feature of WSDL 1.1 and 2.0.

B is a duplicate of A - this appears to be a poorly constructed question where A and B are identical; in a real exam, only one would be the intended correct option.

C is wrong because XML schemas in WSDL define data types for messages, not location - the service endpoint location is defined separately in the <service>/<port> binding, not via XML Schema.

D is wrong because the opposite is true: WSDL was explicitly designed to work alongside XML Schema, and using XSD within the <types> block is standard practice.

Memory tip: Think of WSDL's <types> block as an embedded XSD container - WSDL describes how to call a service (structure, bindings, location), while XML Schema describes what data looks like. They work together, never apart.

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