Four IT managers from different organizations have chosen to adopt SOA. When subsequently interviewed, each was asked to explain why this decision was made. One of the IT managers is confused and chose to adopt SOA for the wrong reasons. Study the following responses and select the one that is not accurate:
A. "SOA will help us increase the responsiveness of the organization as a whole. When our business encounters change, our IT department will be able to adapt and respond to this change more efficiently and effectively than before."
B. "SOA will help us increase the amount of value we get from the software programs we build as reusable services. Over time, this will allow us to improve the cost- effectiveness of IT as a whole."
C. "SOA will help us streamline our IT enterprise. Our goal, ultimately, is to turn the increased value to the IT department into a part of the organization that provides business while reducing its overall burden."
D. "SOA will help our IT department overcome cultural challenges we've traditionally had with the ownership of EAI (Enterprise Application Integration) platforms. Through the use of proven bridging and transformation technologies introduced by SOA, any IT staff that have historically disagreed with each other about ownership issues, will now be able to overcome their differences."
What is the minimum number of domain service inventories you need in order to create a single enterprise service inventory?
A. two
B. three
C. one for each business domain
D. An enterprise service inventory is not comprised of domain service inventories.
Project Team A delivers Domain Service Inventory A with 20 services. If Project Team B delivers Domain Service Inventory B with 50 services, how many services are in the Enterprise Service Inventory?
A. 20
B. 50
C. 70
D. An enterprise service inventory is not comprised of domain service inventories.
An IT enterprise proceeds with an SOA initiative that is based on the creation of a single enterprise service inventory. However, conflicts arise when different IT departments disagree on who will own the services and how they will be governed. Which of the following alternative approaches could be chosen to address these conflicts?
A. The top-down approach is chosen. This allows services to be modeled subsequent to their design, thereby enabling each service to be governed by multiple owners.
B. It is decided to proceed with the creation of multiple domain service inventories. This allows collections of services to be independently governed by different owners, while still enabling the IT enterprise as a whole to transition toward SOA.
C. The established "contract last" approach is chosen, allowing different IT managers to focus on contract-related governance issues after the services are deployed and in use.
D. Because SOA projects absolutely require enterprise-wide standardization and further demand the creation of an enterprise service inventory, the IT managers have no choice than to cancel the project.
If a service can have one or more service capabilities, then how can a service consumer interact with a service?
A. It can't. The service must only provide one service capability in order for it to be accessible by service consumers.
B. Each service capability represents a function that the service has to offer. The service consumer can invoke and interact with one service capability at a time, thereby only using a subset of the service's overall functionality.
C. Service capabilities are designed to be composed together, which means that in order for a service consumer to interact with a service, it must be designed to invoke all of its service capabilities at the same time.
D. Services do not have service capabilities that are explicitly invoked. Services almost always exist as event-driven programs that transparently intercept service consumer messages at runtime.
Which of the following statements is true?
A. For a service consumer to interact with a service it must comply to the requirements of the service contract.
B. The service contract is used to express meta data about a service for human consumption only, and compliance to the service contract by service consumers is therefore not required.
C. Service contracts are only used to access a service when the service consumer itself is not a service.
D. All of these statements are true.
Which of the following statements is false?
A. The standardization of service contracts supports the strategic goal of Increased Intrinsic Interoperability.
B. The standardization of service contracts supports the strategic goal of Increased Governance Integration.
C. The standardization of service contracts is supported by service-orientation.
D. The standardization of service contracts supports the strategic goal of Increased Federation.
The ability of one service to another service forms the basis of service .
A. divert, diversification
B. register, registries
C. consume, composition
D. integrate, integration
A software program that invokes and interacts with a service is referred to as a:
A. service contract
B. service inventory
C. service container
D. none of the above
Service composition is important to the success of SOA initiatives because:
A. You can only create service-oriented solutions as service compositions.
B. Services that compose multiple legacy systems can be designed to leverage only the parts of each system that are relevant to the functional context of the service.
C. Service compositions enable the service-oriented computing goal of Increased Federation by guaranteeing that service endpoints are consistently designed and developed.
D. Services that can be composed and recomposed support several service-oriented computing goals, including Increased ROI and Increased Organizational Agility.
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