Prepare with SOA C90.03 exam torrent, pass for sure

Organization A has been expanding and, as a result, is outgrowing the processing capacity
of its on-premise Service A implementation. It is determined that this is due to usage
thresholds of Service A and complex data processing limitations in Database A.
The diagram depicts Organization A's current on-premise environment, where Service
Consumers A.
B and C attempt to access Service A at the same time. Service Consumer A
successfully accesses Service A, which then successfully retrieves the requested data (1).
Service Consumer B successfully accesses Service A, but due to the complex data
structure, the request for the data times out and fails (2). Finally, Service Consumer C
attempts to access Service A, but is rejected because Service A is unable to accept more
concurrent requests.

Organization A is required to continue using its on-premise Service A implementation, with
the exception of Database A, which does not need to remain on-premise. Database A is
dedicated to Service A and is comprised of relational data. Which of the following
statements provides a solution that uses cloud-based IT resources to solve the
performance limitations of Service A and Database A?

• A. A cloud bursting solution can be implemented, whereby a redundant copy of Service A
  is implemented within a public cloud. This cloud-based, redundant implementation of
  Service A is referred to as Cloud Service A.
  A copy of Database A is also implemented within the cloud and both the on-premise and cloud-based copies of Database A are
  redesigned to be non-relational in order to improve data access performance. Service A
  continues to act as a first point of contact for Service Consumers A, B and C.
  An automated scaling listener is deployed so that when Service A's thresholds are met,
  requests are automatically routed to Cloud Service A.
• B. None of the above
• C. A failover system can be implemented in a hybrid architecture comprised of
  Organization A's existing on-premise environment and a public cloud environment. The
  failover system would span both environments so that when Service A is unable to process
  request messages from Service Consumers A, B or C, the failover system can
  automatically route messages to a redundant implementation of Service A residing in the
  public cloud. Similarly, when Database A is unable to process a data access request from
  Service A.the failover system can automatically route this request to a redundant
  implementation of Database A, also residing in the public cloud.
• D. The state management database and resource replication mechanisms can be
  implemented to establish redundant implementations of Service A and Database A in both
  on-premise and cloud environments. Using resource replication, a cloud-based duplicate of
  Service A (Cloud Service A) will be established in a public cloud and will remain in synch
  with Service A via regular replication cycles. Using the resource replication mechanism
  together with the state management database mechanism allows for Database A to be
  dynamically replicated in an independent state management database that has redundant
  implementations in both on-premise and cloud environments. The state management
  database can be further optimized to support non-relational data to improve data access
  performance.

Cloud Service Consumer A accesses Cloud Service A (1) that resides in Cloud X.
a private cloud owned by the same organization acting as Cloud Consumer A.
Cloud Service A
processes the message from Cloud Service Consumer A and then sends back a response
with the requested data (2). Next, Cloud Service Consumer A sends a message containing
some of this data to Cloud Service B (3), which resides in public Cloud Y that is owned by
Cloud Provider Y.
After processing the message. Cloud Service B sends back a response
with additional data to Cloud Service Consumer A (4). Finally, Cloud Service Consumer A
writes the data it collected from Cloud Services A and B to Database A (5).
Recently, Cloud Service Consumer A has been required to access Cloud Services A and B
at a significantly higher rate, sometimes over 1,000 times within a given workday. This
increased usage has not affected Cloud Service B' s performance. Cloud Service A,
however, has been generating runtime exceptions, and responses to Cloud Service
Consumer A have become increasingly slow and unreliable. It is determined that this
decline in performance is due to infrastructure limitations within private Cloud X' s
environment. Instead of investing in new infrastructure for Cloud X, it is decided to explore
the feasibility of moving Cloud Service A to Cloud Y instead.

Which of the following statements describe valid financial considerations that can be taken
into account for assessing the feasibility of this move?

• A. Moving Cloud Service A to Cloud Y will result in the need for Cloud Service A to
  undergo integration testing to determine how well it can function within Cloud Y and what
  changes may need to be made to Cloud Service A in order for it to behave as expected.
  The integration testing and the subsequent changes required for Cloud Service A to
  function correctly within Cloud Y will incur integration costs that need to be budgeted for.
• B. By moving Cloud Service A to Cloud Y, there may be a decrease in operational
  governance control over the Cloud Service A implementation. This can increase locked-in
  costs because Cloud Consumer A may be forced to form dependencies upon proprietary
  tools used to configure and maintain the Cloud Service A implementation.
• C. If the existing infrastructure that currently resides in private Cloud X was purchased
  specifically in support of Cloud Service A, then there may be a financial loss resulting from
  moving Cloud Service A out of Cloud X.
  This can be considered sunk costs that need to be
  evaluated.
• D. Because, in this scenario, the cost of capital is comprised of the up-front costs added to
  the on-going costs, the cost of capital required to move Cloud Service A to Cloud Y will be
  higher than upgrading Cloud X to accommodate Cloud Service A' s increased usage.

Cloud Provider X (which owns Cloud X) deploys two physical servers (Physical Servers A
and B) and two databases (Databases A and B). Virtual Servers A and B are hosted by
Physical Server A and Ready-Made Environments A and B are hosted by Virtual Server B.
Virtual Servers C and D are hosted by Physical Server B.
Cloud Service Consumer A regularly accesses Virtual Server D in order to test and deploy a new cloud service that
was developed on-premise by the cloud consumer organization operating Cloud Service
Consumer A.
Cloud Service Consumer B (operated by a different cloud consumer organization) has been regularly accessing Ready-Made Environment A in order to develop
and deploy a different new cloud service.

Cloud X is a private cloud that, to-date, has been set up within the cloud provider company
to provision IT resources free of charge to internal cloud consumers, via PaaS and IaaS
delivery models. The cloud consumers that have been operating Cloud Service Consumers
A and B represent different IT departments within the company that have been working
separately on the development of new cloud services. Cloud Service Consumer A has
been accessing Virtual Server D to make necessary configurations and administration
settings for the upcoming deployment of a new cloud service that was previously
developed outside of Cloud X.
Cloud Service Consumer B has been accessing Ready-
Made Environment A to develop and now deploy a different new cloud service.
Cloud Provider X (which is represented by a separate IT department dedicated to
governing and administering Cloud X) determines that it will need to introduce three
specific enhancements to Cloud X in order to accommodate both upcoming cloud services.
First, it needs to add a way to charge cloud consumers for the usage of cloud services.
Secondly, it needs to add a way for new cloud services to be automatically scaled. Finally,
it needs to add a way for a cloud consumer to be automatically notified when a cloud
service encounters runtime loads that exceed its allocated usage threshold.
Which of the following statements accurately describes a solution that fulfills all three
identified requirements?

• A. The state management database mechanism together with the virtual server mechanism
  and the automated scaling listener mechanism can be implemented to address the
  requirement for cloud service usage charges to be tracked and recorded, for cloud services
  to be automatically scaled, and for notifications to be issued when cloud service loads
  exceed thresholds.
• B. The pay-for-use monitor mechanism can be installed to address the requirement for
  cloud service usage charges to be tracked and recorded. The automated scaling listener
  mechanism can be implemented to address the requirement for cloud services to be
  automatically scaled. The multi-device broker mechanism can be implemented to address
  the requirement for notifications to be issued when cloud service loads exceed thresholds.
• C. The pay-for-use monitor mechanism can be implemented to address the requirement for
  cloud service usage charges to be tracked and recorded, for cloud services to be
  automatically scaled, and for notifications to be issued when cloud service loads exceed
  thresholds.
• D. The pay-for-use monitor mechanism can be installed to address the requirement for
  cloud service usage to be tracked and recorded. The automated scaling listener
  mechanism can be implemented to address both the requirement for cloud services to be
  automatically scaled and for notifications to be issued when cloud service loads exceed
  thresholds.