Multiple choice technology programming languages

If the portType element in the WSDL file of a BPEL process contains both input and output elements, what can be gauged about the nature of the BPEL process

  1. The BPEL process is synchronous in nature

  2. The BPEL process is asynchronous in nature

  3. The BPEL process has parallel processing

  4. We do not have sufficient information to tell whether the BPEL process is synchronous or asynchronous
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A Correct answer
Explanation

A portType with both input and output elements indicates a synchronous request-response operation. Asynchronous operations use separate portTypes - one for the input operation and another for the callback output.

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