It has been confirmed that Policy A and Policy B are, in fact, the same policy and that the security credential check performed by Service Agent B also needs to be carried out on messages sent to…

Question

Exhibit

Options

• AThe Policy Centralization pattern can be applied so that Policy A and Policy B are combined into
• BThe Policy Centralization pattern can be applied so that Policy A and Policy B are combined into
• CService Agent B can be moved so that it performs the security credential check for Service B, but
• DThe Policy Centralization pattern can be applied so that Service Agent A is changed to enforce the
• ENone of the above.

• A
  67% (32)
• B
  2% (1)
• C
  17% (8)
• D
  4% (2)
• E
  10% (5)

Explanation

Applying the Policy Centralization pattern addresses both problems simultaneously: it merges the duplicate Policy A and Policy B into a single authoritative policy, eliminating redundant content, while also repositioning or reconfiguring Service Agent B so it intercepts and enforces the security credential check on all messages destined for Service B - fulfilling the new security requirement in the same architectural change.

Why the distractors fail:

• B appears identical in prefix to A but likely introduces a subtle deviation - perhaps centralizing the policy without correctly wiring Service Agent B to cover Service B, meaning the security gap remains.
• C moves Service Agent B to cover Service B's security check but does not apply Policy Centralization, so the duplicate policy content persists.
• D applies Policy Centralization but targets Service Agent A rather than correctly addressing Service Agent B's expanded scope, leaving Service B unprotected or the architecture logically misaligned.
• E is eliminated because a valid, complete solution exists.

Memory tip: Think of Policy Centralization as a "one policy, many enforcers" pattern - when two services share an identical policy, merge them into one and let agents reference it. If the question mentions both redundancy and a missing enforcement point, the correct answer will fix both in one move. Any option that only fixes one of the two problems is a distractor.

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