SOA Fundamental SOA & Service Oriented Computing Set 3

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SOA Fundamental SOA & Service Oriented Computing Set 3

Which of the following is an expected result of successfully adopting SOA?

A natural increase in runtime performance that you will gain as a result of the fact that service
compositions will often be comprised of a greater amount of individually participating programs
(services) than traditional distributed applications. ✘ The fact that the existing IT organizational structure will not have to change because of how well aservice-oriented enterprise fits into traditional IT departmental structures that are focused on project-
centric application delivery. ✘ The tactical (short-term) focus of service-orientation, which allows for the initial rapid delivery of serviceswithout concerns about their subsequent governance. ✘ The strategic (long-term) target state that is attainable when many of the services delivered areinteroperable and reusable, thereby allowing for them to be repeatedly composed in response to new
and changing business requirements. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Service Composition A is comprised of 4 services. Service Composition B is comprised of 6 services.
Because both service compositions are comprised of services from the same service inventory, the service inventory will have a total of how many services?

10 ✘ 24 ✘ Based on the information provided, it's impossible to know how many services reside in the serviceinventory because we don't know how many other service compositions exist. ✘ Based on the information provided, it's impossible to know how many services reside in the serviceinventory because the quantity of services within a service inventory is not determined by the quantity of
services in service compositions. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

I built a service-oriented solution a year ago comprised of 3 services. I've just been told that the business process automated by the solution is going to be replaced by a new business process that introduces some changes to how the business process logic needs to be automated. What should I do?

Replace the solution with a brand new service-oriented solution comprised of new services designed
specifically to automate the new business process. ✘ Identify the services within the solution that are no longer relevant to the new business process andpermanently retire them so that no other service-oriented solution inadvertently uses them. ✘ Assuming there is an established service inventory in place, attempt to locate any existing services thatcan provide the logic required to automate the new business process and then change how the services
within the solution need to be composed, as required. ✘ Due to the fact that service-oriented solutions are inherently unable to adapt to business processchange, you should investigate for how long you can continue to use your current solution. Even if it
does not exactly provide the functionality required by the new business process, it is still likely to
automate a subset of the new business process logic, thereby providing you with an opportunity to
continue to get some value from the solution before you are forced to retire it. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which of the following statements makes sense?

I am going to register my new service in the service registry so that other project teams can discover it
in order to determine whether they should reuse it as part of service-oriented solutions they are planning
to build. ✘ I am going to register my new service inventory in the service registry in order to improve theperformance of my service-oriented solution, because other services in my service composition will be
able to dynamically discover and retrieve the new service much faster than if it was not registered in the
service registry. ✘ I am going to register my new service in the service registry because Service Registration is one of theeight principles of service-orientation. ✘ None of these statements make sense. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Which of the following is a recommended or common part of a service-oriented enterprise?

business services ✘ service registries ✘ service contracts ✘ all of the above ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

I anticipate building larger service compositions comprised of more services. How will this likely affect performance and infrastructure?

It will likely increase performance demands and require an increase in infrastructure investment. ✘ It will likely reduce performance demands and require an increase in infrastructure investment. ✘ It will likely increase performance demands and require a reduction in infrastructure investment. ✘ It will not affect performance or infrastructure. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

Service A invokes ServiceB. Service B invokes ServiceC. Service C invokes both Service D and Service

In this runtime scenario, which services are acting as service consumers? ✘ Service A, Service B, Service C ✘ Service D, Service E ✘ Service A ✔ None, because a service cannot also be a service consumer. ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

When following the distinct lifecycle phases of an SOA delivery project you are:

discouraged from involving business analysts as part of the definition of services so that services
remain technically focused ✘ discouraged from involving technology experts as part of the definition of services so that servicesremain business focused ✘ encouraged to have business analysts and technology experts collaborate in the definition of servicesso that services have and retain an alignment of technology and business ✘ none of the above ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

When you establish a federated service layer, you end up creating:

a unified set of service contracts for the benefit of those building service consumers ✘ a unified set of service consumer programs for the benefit of those building services to be consumed bythose programs ✘ a unified set of service compositions for the benefit of those responsible for defining service inventoryboundaries ✘ all of the above ✔

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

10.

Service-oriented architecture must be designed to be both integration-centric and silo-based.

1 ✘

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Answer & Solution

Answer: Option B

Solution:

It provides fallback for IE8.

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