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EMC IT-as-a-Service Expert Exam for Cloud Architects Sample Questions:

1. An IT security team is concerned about the authentication traffic patterns that may be required to integrate the private and public clouds. As a result, IT has elected to federate their active directory using ADFS from the private cloud to the public cloud.
One of the design decisions is whether to use a Layer 2, 3, or 7 firewall / switch mechanism between the public and private clouds. There are trade-offs with each choice.
Which network layer would best address this situation, and why?

A) Layer 2, because it provides the simplest configuration to manage and it is easy to isolate and troubleshoot problems.
B) Layer 3, because it allows segment isolation while still providing high performance levels.
C) Layer 7, because it allows control at the application layer and is policy driven.
D) Layer 2, because it provides the best performance and it is easy to isolate problems.

2. An enterprise is beginning its journey to IT-as-a-Service (ITaaS), and has retained a Cloud Architect to assist them. An assessment of their current environment has already been completed and a gap analysis has been done.
What should the Cloud Architect recommend to determine if business activities are aligned with strategic vision?

A) ITaaS Organizational Readiness Assessment
B) Right-Sourced Workloads
C) A Balanced Scorecard
D) A Controls Matrix

3. An enterprise's IT department is transitioning to ITaaS. The IT department is developing a service management methodology. They are uncertain about how much of the measurement data should be stored, and for how long. One consideration is the trade-off between storage cost and data granularity.
What would you, the cloud architect, recommend as a best practice?

A) Keep only peaks and averages for a longer period of time. This minimizes query time, protection, and recovery issues.
B) Store as much monitoring data as possible given cost constraints. This enables future diagnosis and offers visibility into SLA compliance.
C) Keep more granular data than just peaks and averages. This allows a higher level of monitoring at reasonable cost, given deduplication and compression.
D) Keep all raw data, given that storage costs are relatively low.

4. A company is actively moving business applications to an ITaaS model. The IT department increasingly acts as an adviser, proposing the best fit from either private cloud capability or public cloud suppliers.
The company's finance department is considering their financial applications for cloud as they increasingly need more capacity and better performance at the end of the month, which the current infrastructure cannot deliver. The financial application architecture is three tier (presentation, middleware, and database).
The IT security team has suggested that with appropriate controls the presentation layer could be deployed in a public cloud but the middleware and database layers cannot.
What would be the best approach to enabling service elasticity in this scenario?

A) IaaS deployment in the community cloud
B) IaaS deployment in the private cloud
C) IaaS deployment in the public cloud
D) IaaS deployment in the hybrid cloud

5. Refer to Scenario 3.
"A US company has deployed web services within a private cloud. They wish to provide additional web services elastically and distribute them around the globe using a public cloud provider.
The web services have a dependency on a database resource in the private cloud. The web services are deployed through a service catalog as a standardized service offering, which includes an intrusion prevention system that periodically polls a central management server for security updates. The IPS management server is located within the private cloud.
The web services collect highly regulated personal health information about consumers who are located around the world."
In your analysis, you find that a different hypervisor is being used by the public cloud provider.
As the enterprise elastically provisions resources, what is a possible solution if the hypervisors are different?

A) Shut down services before migrating to the public cloud.
B) Recalibrate the current service template and deploy it in the public cloud.
C) Create a different service template to deploy in the public cloud.
D) Use a second service catalog to deploy the current service template in the public cloud.

Solutions: