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

1. 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) Public Key Infrastructure
C) SAML
D) OAuth

2. A company is deploying a major new business application. The company has difficulty managing the software development lifecycle. As a result, the time from generating requirements to operational delivery is significant.
Which best addresses the company's need for shorter release cycles and better code quality?

A) Transition to a DevOps culture
B) Implement common collaboration tools
C) Utilize configuration management methodologies
D) Use of common automation and orchestration processes

3. A marketing company is using a Customer Relationship Management SaaS. The SaaS provider has deployed hardware load balancers to distribute users between application servers. User login states are preserved in the load balancer. Subsequent login requests direct each user to the same application server. If the server is unavailable or too busy, the user cannot log on.
Although the company is very happy with the SaaS cost savings they are unhappy with application availability. To improve application scalability the SaaS provider added new servers to the environment. Users, however, are still experiencing the same problem.
Which service characteristic should the SaaS provider implement to improve the user log-on reliability and scale application performance?

A) Abstraction
B) Reusable
C) Autonomy
D) Stateless

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

5. A hosting organization operates from two data centers and typically hosts very large customers. The delivery and support of the IT Infrastructure is not service driven. The IT technical delivery functions operate in silos. Customers suffer a significant lead time to establish new operational environments. In addition, changes to applications that impact the infrastructure have a long lead time.
One of the customers has requested a service-driven approach for a new business application and its associated infrastructure. The hosting organization has agreed to build a PaaS offering.
Which operational tool and process transformation approach is most suitable for the hosting company?

A) Deploy additional cloud tools alongside existing tooling. Train the IT operations teams to use the new tools. Start to transform operations once the cloud is up and running.
B) Design a new service-driven set of tools and processes. Train some of the IT operations teams to use the new tools. In advance of service demand, procure appropriate storage, network and compute capability for the cloud.
C) Use the existing mature tools and processes that are used for all customers. Manage cloud capacity using the existing process to order storage, network and compute.
D) Design a new service-driven set of tools and processes. Train the IT operations teams to use the new tools. Manage cloud capacity using the existing process to order storage, network and compute.

Solutions: