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

1. Which metric measures the time taken to realize benefits from an ITaaS solution?

A) Time-to-deploy
B) Time-to-live
C) Time-to-deliver
D) Time-to-value

2. A company is actively moving business applications to an ITaaS model. The IT department increasingly acts as an adviser, proposing the best fit from either private cloud capability or public cloud suppliers.
The company's finance department is considering their financial applications for cloud as they increasingly need more capacity and better performance at the end of the month, which the current infrastructure cannot deliver. The financial application architecture is three tier (presentation, middleware, and database).
The IT security team has suggested that with appropriate controls the presentation layer could be deployed in a public cloud but the middleware and database layers cannot.
What would be the best approach to enabling service elasticity in this scenario?

A) IaaS deployment in the community cloud
B) IaaS deployment in the private cloud
C) IaaS deployment in the hybrid cloud
D) IaaS deployment in the public cloud

3. A hosting provider is evaluating potential resource allocation models to use for reserving client resources. Their service offering targets companies that want to run a dedicated private cloud and have mature personnel capable of allocating and managing resources based on their own needs.
Which model would be most suitable?

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

4. Refer to Scenario 3.
A US company 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 dependency on a database resource in the private cloud. The web services are deployed through a service catalog as a standardized service offering, 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.
The web services collect highly regulated personal health information about consumers who are located around the world.
Once the web services were deployed into the public cloud, users started complaining about poor performance. Which solution would most likely improve performance of the web services?

A) Implement a global load balancing service as a front-end for the web services.
B) Allocate additional virtual network interface cards to each web service to increase bandwidth.
C) Re-architect the web service to be loosely coupled.
D) Select a new internet service provider with a better peering relationship for end users.

5. A company with a very high virtualization percentage decided to move to a cloud architecture. They hired a cloud service provider (CSP) to provide infrastructure on demand. The company moved the web front-end of a tightly coupled service to the CSP. Now users are complaining about slow response and timeout errors when accessing some of the web based applications.
What is the most likely reason for this issue?

A) One or more web server dependencies were not moved together to the CSP
B) The company data center and the CSP do not have Layer 2 extension
C) Users are not in the same Layer 2 domain as the CSP
D) The company data center and the CSP do not have Layer 3 connectivity

Solutions: