EMC Cloud Architect E20-918

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EMC IT-as-a-Service Expert Exam for Cloud Architects 認定 E20-918 試験問題:

1. An IT group within an organization is transforming their virtualized data center to ITaaS. They plan to implement a chargeback method to appropriately bill the lines of business for the resources consumed. IT will initially offer a Windows platform for the QA personnel to perform end user testing on the application developed by the engineering group.
How would they effectively determine the cost of a service instance?

A) Use the price that is used by a competitive CSP as a baseline. Factor in variable administrative costs, and then divide by the number of planned service instances.
B) Use the cost of the hardware, software, and licensing. Add in growth, then factor in the number of VMs that the hypervisors can support.
C) Use the fixed costs and variable costs associated with the service, then factor in the number of service instances that the infrastructure resources can support.
D) Use the Windows license cost and growth requirements, then factor in the number of service instances that can be supported.

2. Which risk domain(s) is a concern when end users independently leverage the public cloud outside the management of corporate IT?

A) Availability and Control
B) Accessibility and Ease of use
C) Non-repudiation
D) FIPS-140 enforcement

3. During an initial discovery of a company's environment you realize there are applications with unique risk considerations. In anticipation of moving the organization to ITaaS, how should these application security requirements be managed?

A) Identify a unique cloud service provider to host each sensitive application
B) Address security on an application by application basis
C) Adopt the public cloud provider's security standards
D) Implement an intrusion protection system

4. Refer to the exhibit.

A company is evaluating an ITaaS architecture to provision applications for their various business units. The IT architects consult you for help on the illustrated design.
What is a potential risk in the design?

A) Multi-tenancy
B) CPU resource contention
C) Unbalanced resource utilization
D) Memory resource contention

5. A small company has been using a public cloud IaaS provider for several months. During this time the company has seen significant growth in revenue. This growth has triggered a surge in hiring, which has forced the company to repeatedly purchase additional services at premium cost from their CSP.
The company has leased a data center and started designing a cloud infrastructure to deploy a private cloud environment. The underlying hypervisor technology they chose is different than that of the CSP. Once the initial infrastructure has been implemented, they will transition to a hybrid cloud model. New services will only be deployed in the private cloud.
A new CIO has just been hired, but has little experience with cloud computing. You are a Cloud Architect who has been asked to consult on several areas of concern.
The first service must be deployed in the private cloud within the next month. The CIO does not want to rely solely on the existing single sign-on solution hosted in the public cloud, because network disruption between the clouds would impact user access.
What is the best option for an interim single sign-on solution that can be replaced once the private cloud is fully implemented?

A) Identity Provider
B) SAML
C) Public Key Infrastructure
D) OAuth

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