Exam 3: SOA Design & Architecture (S90-03A)

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

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

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

When referring to the Service Discoverability principle, the quality of interpretability refers to a service's ability to be effectively discovered at runtime by service consumer programs designed to carry out dynamic runtime discovery. Select the correct answer.

Fill in the blank for the following definition for the Standardized Service Contract design principle: "Services within the same __________________ are in compliance with the same contract design standards." Select the correct answer.

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.

The Service Discoverability principle is supported by the Standardized Service Contract principle in which of the following ways? Select the correct answer.

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.

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

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

Fundamental to service-orientation is the ability to continually recompose existing services into new compositions with minimal impact. This is why service-oriented technology architectures are required to be composition-centric. Select the correct answer.

A service-oriented solution can be comprised of which of the following core architectural elements? Select the correct answer.

A service cannot enter the role of composition sub-controller when invoked by a composition initiator. Select the correct answer.

Fill in the blank for the following definition of the Service Reusability design principle: "Services contain and express __________________ logic and can be positioned as reusable enterprise resources." Select the correct answer.

My service was consuming too much memory so I chose to persist data between invocations to a database. After doing so, I found that the performance of my service declined significantly due to the fact that my database is shared with other applications. As a result, I further isolated the service by giving it its own dedicated database. Which service-orientation principles were involved in this scenario? Select the correct answer.

A(n) __________________ in the extent to which a service needs to share resources with other parts of the IT enterprise will result in a(n) __________________ of the service's overall __________________. Select the correct answer.

A(n) __________________ in the extent to which the Service Reusability principle is applied to a service can result in a(n) __________________ in the potential for the service to be repeatedly composed. SELECT ALL THAT APPLY

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

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

As a first step toward replacing a corporate customer database, a company attempts to limit access to customer services via an official Customer entity service. However, some time later it is discovered that several applications have been bypassing the Customer service in order to directly access the customer database. As a result, these applications exhibit which negative form of coupling? Select the correct answer.