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

1. An enterprise has decided to implement a new service that will process credit card information. They will deploy this service within their private cloud. They have a relationship with a public cloud provider that claims to be PCI compliant.
The enterprise wishes to implement a service that is PCI compliant with the least amount of effort. The service is protected by a policy-based intrusion detection system. Cardholder data is securely transmitted to the web interface.
Which additional design elements would best be suited for this implementation?

A) The card number is masked as it is typed and is immediately encrypted and securely sent to both the credit card processing system and to private cloud for historical tracking and reporting only.
B) The card number is masked as it is typed and is immediately encrypted, stored, and securely sent directly to the credit card processing system. Credit card information is stored within the public cloud provider using AES 128 encryption.
C) The card number is masked as it is typed and is immediately encrypted and securely sent directly to the credit card processing system. Credit card information is backed up to the private cloud system and stored using AES 128 encryption.
D) The card number is masked as it is typed and is immediately encrypted and securely sent directly to the credit card processing system. No credit card information is stored within the application.

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

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

4. Refer to Scenario 4.
A construction firm with a substantially virtualized IT infrastructure wishes to consider cloud
enablement next, as part of its logical progression to ITaaS.
As a first step, the firm plans to transition one relatively low-risk service -- daily backup -- to a public CSP. The existing backup strategy involves array-based cloning, followed by backup of the clones with dedicated servers. The system is functional; however, since the backup target device is due for a technology refresh, the firm is open to alternatives.
In evaluating alternatives, the key consideration is the ability to meet backup windows for daily incremental backups during the work week.
As advisor to this firm, you have conducted a quick assessment of the candidate applications and storage involved in daily backups. Relevant details are presented in the exhibit.
Another evaluation point is the completion time for weekly full backups to the cloud service provider. Which would have the most favorable impact on full backup speed?

A) Source-based deduplication
B) Low growth rate for volumes
C) Target-based deduplication
D) Low IOPS per GB for volumes

5. Which describes the process for instantiating an IaaS offering?

A) The consumer interacts with an orchestration engine that communicates directly with the hypervisor layer. This triggers a creation of service, allocating resources.
B) The consumer, via a web based catalog, deploys a template that communicates with the hypervisor layer. This triggers a creation of service, allocating CPU, RAM, networking and storage.
C) The consumer, via a web based catalog, selects an orchestration engine that communicates with the hypervisor layer. This triggers a creation of service, allocating CPU, RAM, networking and storage.
D) The consumer, via a web based catalog, selects a service which utilizes an orchestration engine that communicates with the hypervisor layer. This triggers a creation of service through the allocation of resources.

Solutions: