S90.01 Online Practice Questions and Answers

Solution logic is classified as "service-oriented" after:

A. it has been built using Web services

B. it has been built using RPC technologies

C. it has been performance tested to a meaningful extent

D. service-orientation has been applied to a meaningful extent

Services can be referred to as because of the enterprise-centric design considerations of service-orientation and SOA.

A. enterprise architectures

B. enterprise resources

C. enterprise definitions

D. enterprise-centric business models

To qualify as a service composition, at least participating services need to be present. Otherwise, the service interaction only represents a point-to-point exchange.

A. two

B. four

C. six

D. eight

Service-oriented computing advocates a concept based on the creation of a service layer with standardized and unified endpoints (service contracts) while allowing individual service implementations to remain disparate and independently governed. This concept is known as:

A. interoperability

B. transformation

C. federation

D. isolation

XML and XML Schema are examples of:

A. custom design standards commonly used by service-oriented solutions

B. custom design characteristics commonly found in service-oriented solutions

C. industry standards commonly used by service-oriented solutions

D. industry characteristics commonly found in service-oriented solutions

"A primary focus of service modeling is the encapsulation and abstraction of business logic in support of defining business service candidates." What is wrong with this statement?

A. Service modeling is a phase dedicated to defining non-business service logic only.

B. There is no such thing as a business service when creating service-oriented solutions.

C. The service modeling process results in the implementation of services, not the definition of service candidates.

D. There is nothing wrong with this statement.

Project Team Alpha delivers Service A for Solution 1. Project Team Beta delivers Service B for Solution 2. Some time later, Project Team Omega wants to reuse Service A and Service B for its new Solution 3. How would Services A and B need to have been designed in order for Project Team Omega to successfully reuse these services without having to resort to a major integration project?

A. Services always require the use of transformation technologies in order to communicate. Therefore, major integration effort is unavoidable in this scenario.

B. Services A and B need to reside on the same physical server or workstation, thereby allowing them to be reused without the need for major integration effort.

C. Services A and B need to be standardized and designed with an emphasis on intrinsic interoperability so that they are compatible regardless of when or by which project team they are delivered.

D. Service A needs to be designed using a different vendor platform than ServiceB. This enables vendor diversity, thereby guaranteeing interoperability.

Below are excerpts from four different SOA adoption strategy documents. Based on your understanding of SOA, service-orientation, and the goals of service-oriented computing, select the adoption strategy that is clearly the most likely to succeed:

A. "As part of our planned transition toward service-orientation, we will continue to extend the existing legacy applications with transformation-centric middleware that will enable seamless integration and runtime conversion between the different data models and data formats used by these applications."

B. "Each of our existing legacy applications already establishes a domain boundary that is defined by the purpose of the application. We are confident that by leveraging these pre-defined silo-based boundaries we can create a series of effective domain service inventories, each with a scope that corresponds to a legacy application boundary."

C. "Our strategy fully supports the tactical (short-term) nature of service-oriented computing by de-emphasizing standardization and allowing different project teams to deliver services optimized to their respective requirements. This not only speeds the initial delivery of services, it further supports interoperability by enabling services to leverage established integration technologies."

D. "Our strategy is to make the consistent application of service-orientation principles a priority in order to support the attainment of the goals of service-oriented computing. The primary justification for this approach is the fact that we have identified the goals of service-oriented computing to be in alignment with our own business goals."

I built a service-oriented solution a year ago comprised of 3 services. I've just been told that the business process automated by the solution is going to be replaced by a new business process that introduces some changes to how the business process logic needs to be automated. What should I do?

A. Replace the solution with a brand new service-oriented solution comprised of new services designed specifically to automate the new business process.

B. Identify the services within the solution that are no longer relevant to the new business process and permanently retire them so that no other service-oriented solution inadvertently uses them.

C. Assuming there is an established service inventory in place, attempt to locate any existing services that can provide the logic required to automate the new business process and then change how the services within the solution need to be composed, as required.

D. Due to the fact that service-oriented solutions are inherently unable to adapt to business process change, you should investigate for how long you can continue to use your current solution. Even if it does not exactly provide the functionality required by the new business process, it is still likely to automate a subset of the new business process logic, thereby providing you with an opportunity to continue to get some value from the solution before you are forced to retire it.

A common security consideration with service-oriented solutions is the need to apply security at the transport layer as opposed to the message layer. Select the correct answer.

A. True

B. False