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

Actual exam question for Arcitura Education's S90.03 exam

Question #: 124
Topic #: 5

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.

AService Loose Coupling, Service Abstraction

BService Statelessness, Service Autonomy

CService Loose Coupling, Service Statelessness

DService Autonomy, Standardized Service Contract

Show Suggested Answer

Suggested Answer: A

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

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Lili

20 days ago

Totally agree, keeping things decoupled is key.

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Kendra

25 days ago

A) Service Loose Coupling, Service Abstraction is the right choice!

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Julie

1 month 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

1 month 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

2 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

2 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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