S90.03無料問題集「SOA Design & Architecture」

質問 1

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

（A）The Service Composability principle is closely associated with the Service Reusability
principle because service composition can be seen as a form of reuse.

（B）The Service Composability principle prepares services for immediate and eventual
participation in compositions.

（C）The Service Composability principle emphasizes that services need to be designed to
participate as effective members of multiple service compositions.

（D）The Service Composability principle is highly revolutionary because the concept of
aggregating software programs is new to distributed computing.

正解：A、B、C 解答を投票する

質問 2

To be considered an enterprise resource a service must be non-agnostic in nature. Select
the correct answer.

（A）False

（B）True

正解：A 解答を投票する

質問 3

Which of the following statements reveal common misunderstandings about service-
orientation and SOA? SELECT ALL THAT APPLY

（A）Service-orientation is a revolutionary paradigm that is incompatible with existing
paradigms and practices.

（B）Adoption of service-orientation will return an immediate ROI due to its focus on tactical
(short-term) requirements fulfillment.

（C）In order for an enterprise to be successful with SOA, an understanding of service-
orientation is required.

（D）In order for an enterprise to be successful with SOA, enterprise-wide standardization is
required.

正解：A、B、D 解答を投票する

質問 4

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

（A）maintainability

（B）availability

（C）scalability

（D）discoverability

正解：B、C 解答を投票する

質問 5

When applying the Service Loose Coupling design principle, we want to
__________________ the coupling of the service logic to the service contract because that
allows the service contract to remain __________________ from the service logic. Select
the correct answer.

（A）increase, coupled

（B）reduce, decoupled

（C）increase, decoupled

（D）reduce, coupled

正解：C 解答を投票する

質問 6

The design principle most associated with an approach whereby the technical interface or
contract of a service is designed prior to its underlying logic is: Select the correct answer.

（A）Service Composability

（B）Standardized Service Contract

（C）Service Reusability

（D）Service Autonomy

正解：B 解答を投票する

質問 7

I was discussing my new service with a client who told me that my technical service
contract revealed too much information about the underlying service design. For example,
based only on the names of my service capabilities, my client could determine that the
service was using an Oracle database. What service-orientation principle should I apply to
address this problem? Select the correct answer.

（A）Service Abstraction

（B）Service Discoverability

（C）Service Reusability

（D）Service Autonomy

正解：A 解答を投票する

質問 8

Often it is a requirement to wrap a legacy system with a service. This is typically
accomplished by encapsulating calls to the legacy system's Application Programming
Interface (API) within the core logic of the service. Care must be taken to not expose
details of the underlying API through the service contract as it may unintentionally couple
the service consumer to the legacy system. Which pair of service-orientation principles
directly addresses this concern? Select the correct answer.

（A）Service Loose Coupling, Service Abstraction

（B）Service Statelessness, Service Autonomy

（C）Service Autonomy, Standardized Service Contract

（D）Service Loose Coupling, Service Statelessness

正解：A 解答を投票する

質問 9

I built Service Composition A, which is comprised of 4 services. It was very successful in
that it fulfilled all of its expected business requirements. I was then assigned a new project
that required me to deliver a new service composition called Service Composition B.
After studying the new business requirements, I realized that one of the services in Service
Composition A could be reused "as is" in Service Composition B.
However, when I tried to make it part of Service Composition B, I ran into a number of problems. In the end, it turned
out that even though the service was reusable, it was simply not designed to participate in
more than one service composition. Which service-orientation principle would have
addressed this issue if I would have applied it to the service prior to completing Service
Composition A? Select the correct answer.

（A）Service Composability

（B）Service Discoverability

（C）Service Reusability

（D）There is no service-orientation principle that addresses this issue.

正解：A 解答を投票する

質問 10

Common problems associated with silo-based application design include: SELECT ALL
THAT APPLY

（A）It can result in a significant amount of waste due to the fact that silo-based applications
can have significant redundant functionality.

（B）IT operational costs can continue to escalate as more silo-based applications are added
to an IT enterprise.

（C）The integration effort required to make disparate silo-based applications interoperate
can be complex and expensive.

（D）It can result in bloated, oversized technical environments.

正解：A、B、C、D 解答を投票する

S90.03 無料問題集「SOA Design & Architecture」

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