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EMC E20-918 Exam Syllabus Topics:

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

Question 1

An IT organization is currently 80% virtualized and the CIO is planning for the transition to ITaaS. Senior executives are concerned that IT supports too many services and that many of the services are neither efficient nor necessary.
What argument can the CIO make to address the executives' concerns and convince them that ITaaS is the correct strategic decision?

A. ITaaS offers an opportunity to evaluate whether certain IT services should be sourced with a public cloud service provider.
B. ITaaS promotes the rationalization of services currently being offered by IT and offers the services that provide business value through the service catalog.
C. A CMDB can be utilized during the instantiation of the services to improve service levels for the consumers of IT services.
D. ITaaS promotes the concept of on-demand self-service, allowing consumers to use only the services from which they can derive business value.

Question 2

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

Question 3

Refer to the exhibit.

You are discussing a network design that a cloud service provider has proposed for a tenant. The tenant states that one more firewall is required, and you agree.
Where should the firewall be placed?

A. Between the tenant network and the external network
B. Between the Service A and Service B
C. Between VM2 and VM4
D. Between VM2 and the tenant network

Question 4

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 fixed costs and variable costs associated with the service, then factor in the number of service instances that the infrastructure resources can support.
B. Use the Windows license cost and growth requirements, then factor in the number of service instances that can be supported.
C. Use the cost of the hardware, software, and licensing. Add in growth, then factor in the number of VMs that the hypervisors can support.
D. 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.

Question 5

Refer to Scenario 1.
"
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 resolve problem (c)?

A. Offload the "big data" IaaS platform to a public service provider
B. Provide separate resource pools for the application developers and the data scientists and manage the pools separately
C. Implement a showback mechanism to influence consumer behavior when choosing specific resources
D. Standardize on a subset of offerings to meet the needs of most developers and minimize the number of customization options

Solutions: