SOA SOA Certifications S90-03A Questions & Answers

• Question 51:

  Which of the following statements is false? Select the correct answer.

  A. Increasing the quantity of data model transformation logic within a service composition results in an increase in the development effort required to build the service composition due to an increase in the necessary data model mapping logic.

  B. Increasing the quantity of data model transformation logic within a service composition results in a decrease in the development effort required to build the service composition due to the fact that the intrinsic data model mapping logic residing within services can be leveraged.

  C. Increasing the quantity of data model transformation logic within a service composition results in a decrease in the performance of the service composition due to the need to execute the data model mapping logic at runtime.

  D. Increasing the quantity of data model transformation logic within a service composition results in an increase in the architectural complexity of the service composition due to the incorporation of the additional data model transformation layers.

  Correct Answer: B

• Question 52:

  The definition of the Service Composability design principle is as follows: "Services are effective composition participants, regardless of the size and complexity of the composition." What is meant by "regardless of the size and complexity of the composition"? Select the correct answer.

  A. It means that services need to be designed so that they can participate in different types of compositions, regardless of what type of composition they are initially delivered for.

  B. It means that services need to be designed for a specific composition with a specific size and level of complexity, regardless of what other compositions may need to use the service for in the future.

  C. It means that the composition must be large and complex, regardless of the size and complexity of the service itself. These two design aspects need to be kept separate so that service and composition can evolve independently.

  D. The definition for the Service Composability principle does not include the statement "regardless of the size and complexity of the composition".

  Correct Answer: A

• Question 53:

  coupling types are avoided in order to the governance independence of the service. Select the correct answer.

  of the information published about a service. Select the correct answer.

  Besides the Standardized Service Contract principle, which of the following service-orientation principles are also primarily focused on the design of the service contract? SELECT ALL THAT APPLY

  A. Service Autonomy

  B. Service Statelessness

  C. Service Discoverability

  D. Service Abstraction

  Correct Answer: CD

• Question 54:

  When applying the Service Loose Coupling principle

  A. positive, minimize

  B. negative, minimize

  C. negative, maximize

  D. positive, maximize

  Correct Answer: C

• Question 55:

  The Service Discoverability principle is primarily concerned with increasing the

  A. complexity ratio

  B. scalability ratio

  C. communications quality

  D. linear quality

  Correct Answer: C

• Question 56:

  I have a service that is required to access a shared database. When the load on the database is heavy (for example when the billing department is running reports) my service often times-out and returns a fault to the service consumer. Which

  service-orientation principle should I apply to address this problem? Select the correct answer.

  A. Service Loose Coupling

  B. Service Discoverability

  C. Service Autonomy

  D. Service Reusability

  Correct Answer: C

• Question 57:

  Which of the following are considered negative forms of coupling: SELECT ALL THAT APPLY

  A. Logic-to-Contract

  B. Contract-to-Logic

  C. Contract-to-Technology

  D. Contract-to-Implementation

  Correct Answer: BCD

• Question 58:

  When measuring coupling that exists between a service and a service consumer, you can determine the extent of dependency that exists between the service and service consumer. Select the correct answer.

  A. True

  B. False

  Correct Answer: A

• Question 59:

  Which of the following is not a benefit associated with silo-based application design? Select the correct answer.

  A. The emphasis on fulfilling tactical (short-term) business requirements allows for a more predictable application delivery lifecycle.

  B. The analysis and design of applications are easier because strategic (long-term) business requirements don't usually need to be taken into account.

  C. The latest technology advancements can be leveraged by repeatedly building new applications from the ground up.

  D. Applications are always inherently built for repeated reuse across silos.

  Correct Answer: D

• Question 60:

  The composition controller role is most associated with which of the following service models? Select the correct answer.

  A. task service

  B. entity service

  C. utility service

  D. data service

  Correct Answer: A