Question:

The base specification of WSDL defines three WSDL binding extensions. Choose the incorrect option

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WSDL Base Binding Extensions:
• SOAP Binding
• HTTP Binding
• MIME Binding
Updated On: Jun 25, 2026
  • SOAP binding
  • MIME binding
  • HTTP GET & POST binding
  • SOAP RPC binding
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The Correct Option is D

Solution and Explanation

Concept: WSDL (Web Services Description Language) is used to describe web services and how clients can access them. The WSDL specification provides binding extensions that define communication protocols.

Step 1:
Standard WSDL Binding Extensions.
The three standard binding extensions are:
• SOAP Binding
• HTTP Binding
• MIME Binding

Step 2:
Analyze the given options.
SOAP Binding is valid. MIME Binding is valid. HTTP GET/POST Binding is valid under HTTP binding. SOAP RPC Binding is not one of the three fundamental binding extensions defined in the base specification.

Step 3:
Choose the incorrect option.
Hence, \[ \boxed{\text{SOAP RPC Binding}} \] is the incorrect option.
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