EMC E20-918 : IT-as-a-Service Expert Exam for Cloud Architects

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EMC E20-918 Exam Syllabus Topics:

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

1. 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

2. A hosting company has experienced a sudden increase in customer interest and wishes to implement ITaaS. They are now hosting online shopping applications for several retail computer and electronics companies.
Developers in the customer companies use their own internal credentials and have the ability to publish applications and changes to their stores. Shoppers access these stores using a variety of mobile applications and web browsers.
What should be addressed when migrating to ITaaS and implementing a service catalog for the retail and electronic companies?

A) Integration of multiple hypervisors
B) Integration with different authentication systems
C) On-demand resource pool creation
D) Support for several different CMDB systems

3. An enterprise company has a large, virtualized data center. They are currently in the process of auditing their virtual servers to ensure they are in compliance with regulatory requirements.
They want to be able to check new and existing virtual servers for compliance and automatically remediate any virtual machines that are found to be out of compliance.
As a Cloud Architect, which product would you recommend for this purpose?

A) VMware vCenter Orchestrator
B) RSA Archer eGRC Platform
C) Cisco Intelligent Automation for Cloud (CIAC)
D) VMware vCenter Configuration Manager

4. The marketing line of business of an enterprise 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 loosely coupled design and have no content dependencies on any resources in the private cloud. They are created from a standard PaaS template, 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. No layer 2 connectivity exists between the private and public clouds. The consumers of these web services are distributed across the globe.
Which solution would you recommend to best support the web service elasticity and to minimize service network latency for the consumer?

A) Increase bandwidth between the private cloud and the Internet.
B) Implement a global load balancing service as a front-end for the web services.
C) Implement an encrypted VPN tunnel between the private and public clouds.
D) Deploy a central database server to consolidate web service content.

5. Refer to the exhibit.

You have been hired to assist with a migration to an ITaaS environment. The company has offices
in Atlanta, Dubai, and London, with 5000, 2000, and 3000 employees, respectively. A data center exists in each location, and most services have been virtualized. Messaging services are provided locally to the user.
You have just performed an assessment of the environment. The results are shown in the exhibit.
The CIO is interested in closing one of the data centers and migrating some or all of the services to a public cloud service provider (CSP). Any services that do not get migrated to the CSP will be hosted at one of the other two data centers. Network latency averages 8 milliseconds between the Atlanta and London offices, and 10 milliseconds between the London and Dubai offices. Traffic between Atlanta and Dubai is routed through London.
The eCommerce application is external facing and is hosted at all three data centers. Atlanta services 50% of the users in North and South America. London services 40% of the users in Europe and Asia. Dubai services 10% of the users in Africa and Australia.
You have tentatively chosen a CSP that is housed in Frankfurt, and would have access to 3 Gb/s of network bandwidth to the facility. The CSP's service levels are as follows:
-RPO: 4 hours -RTO: 1 hour -Availability: 99.995%
Your recommendation is to close the Dubai data center over a one-year time horizon.
What migration strategy would you recommend for the services that are currently hosted in the Dubai data center, and why?

A) Messaging and eCommerce to the public cloud; CSP can support availability and bandwidth requirements for both applications
B) eCommerce to the public cloud; Messaging to Atlanta; CSP cannot support the bandwidth requirements for Messaging, and latency will be less from Atlanta
C) eCommerce to the public cloud; Messaging to London; CSP cannot support the bandwidth requirements for Messaging, and latency will be less from London
D) Messaging to the public cloud; split eCommerce between London and Atlanta; CSP cannot support the availability for eCommerce

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