Which of the following statements are true? SELECT ALL THAT APPLY

Question

Options

• AXML and XML Schema can be used to help define the technical service contract of a SOAP-
• BXML and XML Schema allow for the creation of data models that can be used by services, but
• CXML and XML Schema are always used to define the structure of the underlying service logic as
• DXML and XML Schema are important because when services are built as Web services, they

• A
  91% (32)
• C
  6% (2)
• D
  3% (1)

Explanation

Options A and B are correct because XML and XML Schema serve two key roles in service-oriented architecture: they define the technical service contract in SOAP-based web services (via WSDL, which uses XML Schema to describe message structures and data types), and they enable the creation of platform-neutral data models that multiple services can share and consume.

Option C is wrong because the word "always" makes it false - XML and XML Schema define data structures and contracts, not the underlying service logic (which is implemented in programming languages like Java or C#). XML describes what is exchanged, not how the service works internally.

Option D is truncated in the question, but in typical exam contexts this type of distractor either overstates a claim or attributes an incorrect benefit to XML/Schema in web services - watch for absolute or overly broad language as a clue.

Memory tip: Think of XML/Schema as the language of the envelope and the blueprint - A covers the contract (the envelope rules in SOAP), and B covers the data model (the blueprint both sides agree on). If an answer says XML defines logic or always applies in some way, eliminate it.

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