SOA
S90-09A · Question #27
S90-09A Question #27: Real Exam Question with Answer & Explanation
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Question
Service Consumer A sends a message to Service A. There are currently three duplicate implementations of Service A (Implementation 1, Implementation 2, Implementation 3). The message sent by Service Consumer A is intercepted by Service Agent A (1), which determines at runtime which implementation of Service A to forward the message to. All three implementations of Service A reside on the same physical server. You are told that despite the fact that duplicate implementations of Service A exist, performance is still poor at times. Also, you are informed that a new service capability will soon need to be added to Service A that will introduce functionality that will require access to a shared database that is used by many other clients and applications in the IT enterprise. This is expected to add further performance demands on Service A . How can this service architecture be changed to improve performance in preparation for the addition of the new service capability?
Exhibit
Options
- AThe Standardized Service Contract principle is applied to ensure that the new service capability
- BThe Service Autonomy principle is applied to further isolate the individual implementations of
- CThe Service Loose Coupling principle is applied together with the Standardized Service Contract
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