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Arcitura Education S90.03 Exam - Topic 5 Question 124 Discussion

Often it is a requirement to wrap a legacy system with a service. This is typically accomplished by encapsulating calls to the legacy system's Application Programming Interface (API) within the core logic of the service. Care must be taken to not expose details of the underlying API through the service contract as it may unintentionally couple the service consumer to the legacy system. Which pair of service-orientation principles directly addresses this concern? Select the correct answer.
A) Service Loose Coupling, Service Abstraction
B) Service Statelessness, Service Autonomy
C) Service Loose Coupling, Service Statelessness
D) Service Autonomy, Standardized Service Contract

Arcitura Education S90.03 Exam - Topic 5 Question 124 Discussion

Actual exam question for Arcitura Education's S90.03 exam
Question #: 124
Topic #: 5
[All S90.03 Questions]

Often it is a requirement to wrap a legacy system with a service. This is typically accomplished by encapsulating calls to the legacy system's Application Programming Interface (API) within the core logic of the service. Care must be taken to not expose details of the underlying API through the service contract as it may unintentionally couple the service consumer to the legacy system. Which pair of service-orientation principles directly addresses this concern? Select the correct answer.

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Suggested Answer: A

by Brittni at Apr 12, 2026, 11:44 AM

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Jaime
3 days ago
A) Service Loose Coupling, Service Abstraction is the right choice!
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Noah
8 days ago
Definitely A, can't let the legacy system leak into the service!
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Brianne
13 days ago
I thought it was about Service Autonomy and Standardized Service Contract?
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Wynell
18 days ago
Wait, are we sure about that? Seems like a tricky area.
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Lili
2 months ago
Totally agree, keeping things decoupled is key.
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Kendra
2 months ago
A) Service Loose Coupling, Service Abstraction is the right choice!
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Julie
3 months ago
I recall that service autonomy is crucial for independent operation, but I’m not confident about how it pairs with the others. D sounds plausible too.
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Argelia
3 months ago
I practiced a similar question about service principles, and I think loose coupling is definitely involved. A seems likely, but I’m hesitant about the second part.
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Mica
3 months ago
I’m not entirely sure, but I feel like service abstraction is key to hiding the legacy API details. So, A could be correct, but I’m also considering D.
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Corrie
3 months ago
I remember studying about how important it is to keep services decoupled from their underlying systems. I think A might be the right choice.
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