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Exam Code: C90-02A
Exam Name: SOA Certified Professional (Cloud Technology Concepts)
Free One year updates to match real exam scenarios, 100% pass and refund Warranty.
Total Q&A: 87 Questions and Answers
Last Update: 2014-01-04

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NO.1 Which of the following cloud computing mechanisms can exist as a service agent that monitors and
keeps track of communication between cloud service consumers and cloud services for load balancing
purposes?
Select the correct answer.
A.multi-device broker
B.pay-for-use monitor
C.resource replicator
D.automated scaling listener
Answer: D

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NO.2 Assuming a cloud service is configured to support on-demand usage, which of the following cloud
computing mechanisms would the cloud provider need to use in order to keep track of what to charge
cloud consumers?
Select the correct answer.
A.on-demand usage listener
B.multi-device broker
C.resource billing replicator
D.None of the above.
Answer: D

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NO.3 A ___________________ is an IT resource that contains mapping logic capable of performing runtime
transformation to enable communication between a cloud service and different types of cloud service
consumers.
Select the correct answer.
A.failover system
B.pay-for-use monitor
C.ready-made environment
D.multi-device broker
Answer: D

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NO.4 The ____________________ is a service agent that can measure the usage of a cloud-based IT
resource by a cloud consumer for billing purposes.
Select the correct answer.
A.automated scaling listener
B.pay-for-use monitor
C.multi-device broker
D.resource replicator
Answer: B

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NO.5 A ____________________ is a pre-defined cloud-based platform comprised of a set of already installed
IT resources that can be used and customized by a cloud consumer.
Select the correct answer.
A.failover system
B.pay-for-use monitor
C.ready-made environment
D.multi-device broker
Answer: C

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NO.6 __________________ represents the ability of a cloud platform to keep track of the usage of its IT
resources by cloud consumers, and is therefore directly related to the __________________ mechanism.
Select the correct answer.
A.Replicated usage, cloud monitor
B.Measured usage, pay-for-use monitor
C.Agent usage, on-premise monitor
D.None of the above.
Answer: B

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NO.7 A cloud service can be hosted by a physical server or a virtual server. When using the failover system
mechanism, the same cloud service cannot be hosted by more than one physical server.
Select the correct answer.
A.True
B.False
Answer: B

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NO.8 Which of the following statements are true about the failover system mechanism?
SELECT ALL THAT APPLY
A.A failover system can only be used for legacy batch programs.
B.A failover system cannot span over more than one geographical region.
C.A failover system can be used to make redundant implementations of the same cloud service.
D.A failover system can be used to avoid introducing cloud services as single points of failure.
Answer: CD

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NO.9 A virtual server is a form of ____________________ software that emulates a(n)
____________________ computer.
Select the correct answer.
A.virtual monitoring, on-premise
B.virtual monitoring, cloud-based
C.virtualization, physical
D.virtualization, logical
Answer: C

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NO.10 A hypervisor can independently manage and monitor the virtualization of multiple virtual servers, and is
therefore associated with the __________________ mechanism.
Select the correct answer.
A.pay-for-use monitor
B.automated scaling listener
C.multi-device broker
D.None of the above.
Answer: D

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NO.11 Which of the following is an IT resource that can be provided in a ready-made environment?
Select the correct answer.
A.database
B.development tool
C.virtual server
D.All of the above.
Answer: D

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NO.12 A failover system can increase ___________________and ___________________ by using
_______________ technology.?
Select the correct answer.
A.resources, usage thresholds, legacy
B.reliability, availability, clustering
C.flexibility, integrity, real-time
D.confidentiality, responsiveness, cloud
Answer: B

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NO.13 Which of the following cloud computing mechanisms helps enable on-demand usage by allowing cloud
services to be configured to support higher usage thresholds automatically, and within pre-defined
parameters?
Select the correct answer.
A.pay-for-use monitor
B.automated scaling listener
C.multi-device broker
D.resource replication
Answer: B

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NO.14 Which of the following IT resources are examples of multi-device brokers?
Select the correct answer.
A.An XML gateway that performs runtime transformation of messaging protocols.
B.A cloud storage gateway that performs runtime transformation of cloud storage device protocols.
C.A middleware product that performs runtime transformation of XML schemas.
D.All of the above.
Answer: D

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NO.15 A ___________________ is a mechanism used to temporarily persist certain types of data as an
alternative to caching the data in memory.
Select the correct answer.
A.resource replicator
B.state management database
C.failover system
D.multi-device broker
Answer: B

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Exam Code: C90-03A

Exam Name: SOA Certified Professional (Cloud Technology Lab)

Exam Code: C90-02A

Exam Name: SOA Certified Professional (Cloud Technology Concepts)

Exam Code: C90-01A

Exam Name: SOA Certified Professional (Fundamental Cloud Computing(C90.01))

Exam Code: S90-20A

Exam Name: SOA Certified Professional (SOA Security Lab)

Exam Code: S90-19A

Exam Name: SOA Certified Professional (Advanced SOA Security)

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NO.1 Cloud Service Consumer A invokes Cloud Service A from Cloud X (owned by Cloud Provider X) (1). To
fulfill the request from Cloud Service Consumer A, Cloud Service A needs to invoke Cloud Service B that
resides on Cloud Y (owned by Cloud Provider Y) (2). After completing its processing, Cloud Service B
sends a response to Cloud Service A (3). Cloud Service A verifies the response and then finally sends its
response to Cloud Service Consumer A (4).
The guaranteed availability of the Cloud Service A implementation is 95% and the guaranteed availability
of the Cloud Service B implementation is 95%. Which of the following statements accurately describes the
actual availability that Cloud Service Consumer A can receive based on the described scenario?
A. Because Cloud Service Consumer A's response message is processed by two separate cloud
services, the combined availability increases as follows:
1.- (1 - 0.95) X (1 - 0.95) = 0.9975 or 99.75%
B. Because Cloud Service A acts as both a cloud service and cloud service consumer in order to
process Cloud Service Consumer B's request message, Cloud Service A forms a dependency on
Cloud Service B. As a result, the combined availability decreases, as follows:
0.95 X 0.95 = 0.9025 or 90.25%
C. Cloud Service Consumer A benefits from redundant cloud service implementations, thereby
increasing the guaranteed availability as follows:
1.- (1 - (0.95 - 0.1))X (1 - (0.95 - 0.1)) = 0.9775 or 97.75%
D. As a result of the dependency formed by Cloud Service Aon Cloud Service B,the combined availability
decreases significantly as follows:
(0.95 X 0.95) - 0.1 = 0.8025 or 80.25%
Answer: B

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NO.2 The cloud service owner of Cloud Service A is evaluating Clouds X, Y and Z to determine which cloud
environment can offer the greatest level of reliability. All three clouds are geographically dispersed across
three separate time zones. As a result, each cloud experiences usage peaks at different times. Based on
the metrics provided, the greater the usage of a cloud, the lower its reliability. When the cloud service
owner complains to Cloud Provider A (the owner of all three clouds) that none of the clouds provide an
adequate level of reliability, Cloud Provider A suggests a solution that increases resiliency.
Which of the following statements accurately describes a solution that can be used to fulfill the resiliency
requirements of Cloud Service A.?
A. Redundant implementations of Cloud Service A are deployed in all three clouds. The failover system
mechanism and a special type of automated scaling listener mechanism are implemented to establish a
system whereby one redundant Cloud Service A implementation will automatically take over from another.
B. A cloud balancing solution is established, whereby an automated scaling listener mechanism is
implemented on each cloud in such a way that every cloud can automatically scale out to another cloud.
As a result, if reliability problems occur on any one cloud, the subsequent requests will be scaled out to
another cloud in a manner that is transparent to cloud service consumers.
C. A failover system mechanism is implemented on Cloud X, which acts as the primary point of contact for
cloud serviceconsumers. Upon failure conditions occurring, the Cloud Service A implementation on Cloud
X automatically hands over control of current and future message requests from cloud service consumers
to Cloud Y. Cloud Y retains control of cloud serviceconsumer communication until the next failure
condition occurs, at which point it hands over control to Cloud Z. Finally, if a failure condition occurs in
Cloud Z. control is handed back to Cloud X.
D. A cloud balancing solution is established, whereby a resource replication mechanism is implemented
on each cloud. This allows Cloud Service A to be automatically replicated across cloud environments,
thereby enabling each implementation of Cloud Service A to take the place of another, whenever failure
conditions occur.
Answer: A

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