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

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

2. You are working with an independent software vendor to deploy a new SaaS-based application into an organization's private cloud. The application supports REST and SAML binding for authentication. Which cloud single sign-on solution would best fit the needs of this SaaS application?

A) SCIM
B) LDAP
C) OpenID
D) OAuth

3. A hosting company operates from two data centers and typically hosts very large customers. The delivery and support of their IT infrastructure is not service driven. Customers suffer significant lead times to establish new operational environments, or to change existing infrastructure requirements.
A new, highly secure application development environment has been requested by one of the hosting company's customers. The customer has a tight time frame and needs to be able to create a test environment on-demand, within hours. The hosting company has decided to transition to ITaaS to meet the needs of this (and future) clients.
What must be done to achieve this?

A) Utilize a public SaaS provider. Analyze the dependencies that the application may have on infrastructure that is located in the hosting data center.
B) Allocate capacity in the virtual environment. Maintain an agreed upon set of server gold builds. When needed, start the appropriate number of servers from templates.
C) Create an IaaS capability. Agree upon the infrastructure dependencies to meet the application's needs. Use server provisioning tools to build servers when needed.
D) Create a PaaS offering and contract. Automate and orchestrate the creation of the environment on-demand.

4. The IT department and lines of business at a pharmaceutical company are determining what the best resource allocation and chargeback models would be to fund their development efforts.
The primary drivers are:
-Guaranteed resources are always available -Applications should be able to burst quickly on-demand -SLAs are negotiable
Which best meets the requirements?

A) A variable resource allocation model. Each LOB is billed one rate for the resources used within the guaranteed pool and a different rate for the resources used within the shared pool.
B) A guaranteed allocation model. Each LOB is billed one rate for the resources used within the guaranteed pool and a different rate for the resources used within the shared pool.
C) A guaranteed allocation model. Each LOB is billed one rate for both the resources used within the guaranteed pool and the shared pool.
D) A variable resource allocation model. Each LOB is billed one rate for both the resources used within the guaranteed pool and shared pool.

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

Solutions: