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

Question

Options

• AServices built as components can expose a non-industry-standard technical service contract.
• BServices built as components can be assembled into service compositions.
• CServices built as components always have a decoupled service contract that exists as a
• DServices cannot be built as components.

• A
  3% (1)
• B
  3% (1)
• C
  85% (29)
• D
  9% (3)

Explanation

Option C is false because the word "always" makes an absolute claim that cannot hold universally - services built as components do not always guarantee a fully decoupled service contract in every implementation. Decoupling is a design goal and best practice in SOA, not a guaranteed invariant of every component-based service.

Why the distractors are wrong:

• A is true - services can expose non-standard (proprietary) technical contracts, even if industry-standard contracts are preferred for interoperability.
• B is true - composability is a core SOA principle; component-based services are specifically designed to be assembled into larger service compositions.
• D is a trap: the statement "services cannot be built as components" is itself false (services absolutely can be components), but the question asks which answer identifies the false statement - and D is too obviously false to be the nuanced "trick" the question is testing.

Memory tip: Watch for absolute qualifiers like "always," "never," "cannot," or "must" in SOA/SOC exam questions - they almost always signal a false statement, since real-world architectural principles allow for exceptions and tradeoffs.

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