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

1. A start-up cloud provider is evaluating potential resource allocation models to use for reserving client resources. Their service offering targets software development and testing.
Which model would be most suitable?

A) Reserved
B) Fixed
C) Pay-as-you-go
D) Guaranteed

2. 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 cost of the hardware, software, and licensing. Add in growth, then factor in the number of VMs that the hypervisors can support.
B) 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.
C) 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.
D) Use the Windows license cost and growth requirements, then factor in the number of service instances that can be supported.

3. A public cloud service provider has stated they intend to improve their IT capabilities in the following areas:
1 - Monitor storage usage patterns and identify bottlenecks
2 - More comprehensive element management
3 - Holistic visibility across their storage services
4 - VMware provisioning
5 - Identifying opportunities to move data to more cost effective storage
Which three areas is ProSphere best suited to address?

A) 2, 3, and 4
B) 3, 4, and 5
C) 1, 2, and 3
D) 1, 3, and 5

4. A health care provider is determining the best chargeback model for their organization. Their requirements are:
-Simple to measure -Operational costs should be amortized over a specific time period -Charges should be divided among the lines of business
Which chargeback model satisfies these requirements?

A) Fixed-cost
B) Subscription-by-peak-usage
C) Variable-cost
D) Subscription-by-time

5. Refer to Scenario 1 below.
An IT department is offering 50 Service Offerings in their service catalog to meet all the application developers' needs. Many of the variants have a very small number of associated instantiations. A "big data" platform is offered and being actively utilized by a team of data scientists.
All services are sourced from within the private cloud. The developers are able to customize the platform's compute, storage, protection and network configuration upon instantiation. They can also provision additional resources after the initial instantiation through an upgrade service within the catalog. Because of the culture of the organization, no chargeback mechanism is implemented.
Within six months, IT experiences these problems:
(a). Developers are complaining of poor and inconsistent performance
(b). Resource utilization has far exceeded expectations
(c). The environment has become very complex
(d). Since the resource pools are shared throughout the organization, IT has been unable to identify usage patterns, making capacity planning very difficult
What can the IT department do to address problem (a)?

A) Divide the "application developer" and "big data" workloads into separate resource pools
B) Offer additional, larger resource platform options to the developers
C) Communicate appropriate SLAs that are realistic given the demand and resources available
D) Standardize on a subset of offerings to meet the needs of most developers and minimize the number of customization options

Solutions: