SOA Design & Architecture - S90.03 Exam Practice Test

Question 1

Which of the following characteristics directly supports or enables behavioral predictability
within services? Select the correct answer.

A. availability (service downtime and periods of unavailability are minimized)

B. maintainability (the service is easily evolved over time without disrupting existing
relationships with service consumers)

C. All of the above.

D. reliability (the service provides consistent results and performance)

Correct Answer: C

Question 2

Which of the following statements are true? SELECT ALL THAT APPLY

A. The application of service-orientation leads to reduced awareness of underlying service
implementation details because the Service Abstraction principle advocates limiting what is
published about services.

B. The application of service-orientation leads to increased behavioral predictability and
increased availability and scalability as a result of applying the Service Autonomy and
Service Statelessness design principles.

C. The application of service-orientation leads to increased awareness of available services
because the Service Discoverability design principle advocates improving the
communications quality of published service information.

D. The application of service-orientation leads to increased consistency in how functionality
is expressed in the service contract because the Service Reusability principle advocates
deferring service contract information at runtime.

Correct Answer: A,B,C

Question 3

When applying the Service Loose Coupling principle __________________ coupling types
are avoided in order to __________________ the governance independence of the
service. Select the correct answer.

A. positive, minimize

B. negative, maximize

C. positive, maximize

D. negative, minimize

Correct Answer: B

Question 4

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 Reusability

B. Service Autonomy

C. Service Discoverability

D. Service Loose Coupling

Correct Answer: B

Question 5

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

A. A composition member is a service that is not composed by other services.

B. A composition member is a service that is composed by another service.

C. None of the above statements are true.

D. A composition member is the same as a sub-controller.

Correct Answer: B

Question 6

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

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

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

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

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

Correct Answer: B

Question 7

Which of the following are goals of the Service Reusability design principle? Select the
correct answer.

A. To increase organizational agility by enabling wide-scale service composition from
service inventories that contains a high percentage of reusable services.

B. All of the above.

C. To support the creation of services based upon agnostic service logic.

D. To allow for service logic to be repeatedly leveraged over time so as to achieve an
increasingly high return on the initial investment of delivering the service.

Correct Answer: B

Question 8

The "contract first" approach to building services helps realize contract-to-logic coupling.
Select the correct answer.

A. True

B. False

Correct Answer: B

Question 9

When applying the Service Loose Coupling design principle, we want to
__________________ the coupling between the service contract and service consumers
and __________________ the coupling of the service contract to its underlying logic.
Select the correct answer.

A. increase, increase

B. increase, reduce

C. reduce, increase

D. reduce, reduce

Correct Answer: D

Question 10

Which are the three design principles that often act as regulators to ensure that the
remaining five principles are properly applied: SELECT ALL THAT APPLY

A. Service Reusability

B. Service Composability

C. Service Abstraction

D. Service Loose Coupling

Correct Answer: B,C,D

SOA Design & Architecture - S90.03 Exam Practice Test

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