SOA S90.03 - SOA Design & Architecture Exam
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Total 100 questions
Question #6 (Topic: )
The following statement describes the relationship between the Service Reusability
principle and which other design principle? "Because of the potentially high performance
and concurrent usage demands of reusable services, the extent of control they can
exercise over their underlying environment is an important design consideration in
guaranteeing an acceptable level of predictable runtime behavior." Select the correct
answer.
principle and which other design principle? "Because of the potentially high performance
and concurrent usage demands of reusable services, the extent of control they can
exercise over their underlying environment is an important design consideration in
guaranteeing an acceptable level of predictable runtime behavior." Select the correct
answer.
A. Standardized Service Contract
B. Service Abstraction
C. Service Autonomy
D. Service Loose Coupling
Answer: C
Question #7 (Topic: )
When a service is required to manage and hold onto an excessive quantity of state data, it
can lead to a decrease in which of the following desirable service characteristics? SELECT
ALL THAT APPLY
can lead to a decrease in which of the following desirable service characteristics? SELECT
ALL THAT APPLY
A. maintainability
B. availability
C. scalability
D. discoverability
Answer: B,C
Question #8 (Topic: )
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.
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".
Answer: A
Question #9 (Topic: )
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
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
Answer: C,D
Question #10 (Topic: )
I have a service composition with three services. Service A retrieves a list of country codes
from a database and keeps this data in memory while interacting with Service B and
Service C. However, because Service A is concurrently invoked many times, and because
each instance of Service A loads its own copy of the country code data into memory, the
demands on the overall infrastructure become too high and performance and reliability are
negatively affected. Which service-orientation principle can be applied to help solve this
problem? Select the correct answer.
from a database and keeps this data in memory while interacting with Service B and
Service C. However, because Service A is concurrently invoked many times, and because
each instance of Service A loads its own copy of the country code data into memory, the
demands on the overall infrastructure become too high and performance and reliability are
negatively affected. Which service-orientation principle can be applied to help solve this
problem? Select the correct answer.
A. Service Reusability
B. Service Autonomy
C. Service Abstraction
D. Service Statelessness
Answer: D
