SOA Certified Professional Cloud Technology Lab : C90-03A Exam

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SOA Certified Professional C90-03A Exam Syllabus Topics:

SOA Certified Professional Cloud Technology Lab Sample Questions:

1. Cloud X (owned by Cloud Provider X) provides Physical Server A which hosts Virtual Servers A and B. Virtual Server B hosts Ready-Made Environments A and B. Cloud Service Consumer A uses Virtual Server A as part of an IaaS leasing agreement in which Cloud Consumer A is charged a fixed monthly fee for unlimited access. Cloud Service Consumers B and C use Ready-Made Environments A and B respectively as part of a PaaS leasing agreement based on per-minute usage fees. In both cases, access is monitored via Pay-For-Use Monitor A, which keeps track of log-in and log-out times in order to calculate the usage charges that are billed to Cloud Consumers B and C.

Physical Server A begins to become unstable. Over the course of a 24 hour period, the server shuts down three times, taking down Virtual Servers A and B with it. This causes numerous problems for Cloud Service Consumers A, B and C, which lose connections and encounter a variety of exceptions.
A subsequent investigation of the log files generated by Pay-For-Use Monitor A reveals that the three server crashes coincided with the usage periods of Ready-Made Er n'ronment B b> Cloud Service Consumer B. De 'elopers at the Cloud Consumer 3 organization confirm they did not actually log in during those periods, which leads Cloud Provider X to discover that another cloud service consumer has been posing as Cloud Service Consumer B in order to maliciously access Ready-Made Environment B, Virtual Server B, and Physical Server B on Cloud X. The investigation concludes that the malicious cloud service consumer was able to carry out the attack successfully by obtaining a weak password being used by developers from Cloud Consumer B.
Which of the following statements accurately identifies the type of security threat that corresponds to the described attack - and -provides a solution that can directly mitigate this type of security threat within Cloud X?

A) Ready-Made Environments, Virtual Server B and Physical Server B were subjected to an attack that succeeded due to overlapping trust boundaries. This type of attack can be mitigated by implementing the single sign-on mechanism.
B) Ready-Made Environment Virtual Server B and Physical Server B were subjected to a malicious intermediary attack that can be mitigated by implementing the cloud-based security groups and hardened virtual server images mechanisms.
C) Ready-Made Environment B. Virtual Server B and Physical Server B were subjected to a weak authentication attack that can be mitigated by implementing the encryption and digital signature mechanisms.
D) Ready-Made Environment B, Virtual Server B and Physical Server B were subjected to a virtualization attack that can be mitigated by implementing the encryption and digital signature mechanisms.

2. Cloud Provider Y owns Cloud Y, which provides a set of cloud services, virtual servers, and one physical server. Cloud Services A and B are hosted on Virtual Server A, which is hosted by Physical Server A. Physical Server A also hosts Virtual Server B, which hosts redundant implementations of Cloud Services A and B for load balancing purposes. Cloud Service Consumer A is accessing Cloud Service A located on Virtual Server A. Cloud Service Consumer B is accessing Cloud Service B located on Virtual Server B. Cloud Service Consumers A and B are both owned by Cloud Consumer X.
Cloud Consumer X has recently complained that Cloud Service A is becoming increasingly unreliable. Cloud Provider Y launches an investigation that reveals that Virtual Server A has been crashing sporadically due to successful malicious intermediary attacks where malicious service agents have been inserting harmful data into messages sent by Cloud Service Consumer A to Cloud Service A.

Which of the following statements describes a solution that can mitigate the malicious intermediary attacks that have been occurring on Virtual Server A - and - can further help prevent the same types of attacks from occurring on Virtual Server B?

A) Cloud Provider Y can implement the encryption and digital signatures mechanisms to protect the contents of messages from being augmented by malicious service agents.
B) Cloud Provider Y can implement the cloud-based security group mechanism that establishes a logical trust boundary that encompasses Virtual Servers A and B.
C) Cloud Provider Y can implement the identity and access management mechanism for Virtual Servers A and B by physically deploying this mechanism on Physical Server A and then further implementing the resource replication mechanism to propagate the identity and access management system across Virtual Servers A and B.
D) Cloud Provider Y can implement the failover system mechanism by requiring that redundant copies of all service agents be deployed. This will reduce the chances of any one service agent performing malicious actions at runtime.

3. 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.
The cloud consumer organizations that own and operate Cloud Service Consumers A and B will soon be ready to launch their respective cloud services for use by their customers. Both cloud consumer organizations are concerned that Cloud X does not provide sufficient security and they demand that Cloud Provider X take the necessary steps to mitigate the denial of service, insufficient authorization and overlapping trust boundaries security threats.

Which of the following statements accurately describes the cloud delivery models used now by the cloud service consumers and in the future by their customers - and - further describes a solution
that fulfills the identified security requirements by implementing a single cloud security mechanism?

A) Cloud Service Consumer A is using theIaaS delivery model. Cloud Service Consumer B is using the SaaS delivery model. Customers of the cloud services will be using the PaaS delivery model. The encryption mechanism can be implemented to mitigate the denial of service, insufficient authorization and overlapping trust boundaries security threats.
B) Cloud Service Consumer A is using theIaaS delivery model. Cloud Service Consumer B is using the PaaS delivery model. Customers of the cloud services will be using the SaaS delivery model. The digital signatures mechanism can be implemented to mitigate the denial of service, insufficient authorization and overlapping trust boundaries security challenges.
C) Cloud Service Consumer A is using theIaaS delivery model. Cloud Service Consumer B is using the PaaS delivery model.Customers of the cloud services will be using the SaaS delivery model. An identity and access management mechanism can be implemented to mitigate the denial of service, insufficient authorization and overlapping trust boundaries security challenges.
D) Cloud Provider X is providing a hybrid delivery model comprised of a combination of theIaaS and PaaS delivery models, which means that Cloud Service Consumers A and B are using both theIaaS and PaaS delivery models. Customers of the cloud services will be using the PaaS delivery model. The single sign-on mechanism can be implemented to mitigate the denial of service and insufficient authorization security threats. The encryption mechanisms can be implemented to mitigate the overlapping trust boundaries security challenges.

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