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SOA S90.09 Exam Dumps

SOA Design & Architecture Lab

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Total Questions : 40
Update Date : May 20, 2024
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SOA S90.09 Sample Questions

Question # 1

Currently, due to the increasing amount of concurrent access by service consumers, theruntime performance of both the Client and Vendor services has worsened and hastherefore reduced their effectiveness as service composition members. Additionally, areview of the logic of both services has revealed that some of the business rules used bythe Client and Vendor services are actually the same. What steps can be taken to improveperformance and reduce redundant business rule logic?

A. The Rules Centralization pattern can be applied by extracting the business rule logicfrom the Client and Vendor services and placing it into a new Rules service, therebyreducing the redundancy of business rules logic. The Redundant Implementation patterncan then be applied to establish a scalable Rules service that is capable of supportingconcurrent access from many service consumers.
B. The Redundant Implementation pattern can be applied to the Client and Vendorservices, thereby establishing duplicate service implementations that can be accessedwhen a service reaches its runtime usage threshold. The Intermediate Routing pattern canbe further applied to provide load balancing logic that can, at runtime, determine which ofthe redundant service implementations is the least busy for a given service consumerrequest.
C. The Rules Centralization pattern can be applied to isolate business rules logic into acentral and reusable Rules service. Additionally, the Service Abstraction principle can beapplied to hide the implementation details of new the Rules service.
D. None of the above.



Question # 2

You are an architect with a project team building services for Service Inventory A . You aretold that no SLAs for Service B and Service C are available. You cannot determine howavailable these services will be, but it has been confirmed that both of these servicessupport atomic transactions and the issuance of positive and negative acknowledgements.However, you also find out that the services in Service Inventory B use different datamodels than the services in Service Inventory A. Furthermore, recent testing results haveshown that the performance of Service D is steady and reliable. However, Service D uses adifferent transport protocol than the services in Service Inventory A. The response time ofService A is not a primary concern, but Service Consumer A does need to be able to issuerequest messages to Service A 24 hours a day without disruption. What steps can be takento fulfill these requirements?

A. The Event-Driven Messaging pattern is applied so that a subscriber-publisherrelationship is established between Service Consumer A and Service A . This gives ServiceA the flexibility to provide its response to Service Consumer A whenever it is able to collectthe three data values without having to require that Service Consumer A remain stateful.The Asynchronous Queuing pattern is applied so that a central messaging queue ispositioned between Service A and Service B and between Service A and Service C . TheData Model Transformation and Protocol Bridging patterns are applied to enablecommunication between Service A and Service B and between Service A and Service C .The Service Autonomy principle is further applied to Service A in order to improve itsoverall runtime behavioral predictability.
B. The Reliable Messaging pattern is applied so that a system of acknowledgements isestablished between Service Consumer A and Service A . This gives Service A theflexibility to provide Service Consumer A with acknowledgements that indicate that theprocessing steps that are occurring between Service A and Service B, Service C, andService D are progressing. The Asynchronous Queuing pattern is applied so that a centralmessaging queue is positioned between Service A and Service B and between Service Aand Service C and between Service A and Service D . The Redundant Implementationpattern is applied so that a copy of Service D is brought in-Upon reviewing theserequirements it becomes D with a standardized service contract that is in compliance withthe design standards used in Service Inventory A.
C. The Asynchronous Queuing pattern is applied so that a central messaging queue ispositioned between Service A and Service B and between Service A and Service C andbetween Service A and Service D and so that a separate messaging queue is positionedbetween Service A and Service Consumer A. The Data Model Transformation pattern isapplied to enable communication between Service A and Service B and between Service Aand Service C . The Protocol Bridging pattern is applied to enable communication betweenService A and Service D .
D. None of the above.