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

1. Refer to Scenario 7.
"
A web hosting company has been growing steadily over the past year. Their single data center is at maximum capacity for power, space and cooling, and their physical infrastructure is also running at capacity. They are evaluating the feasibility of obtaining another data center in a remote location to enable further growth.
One of the web hosting company's eCommerce customers notifies them that they are launching an enormous holiday sale, beginning in a few weeks. They expect utilization of their virtual server farm to double or triple for the next three to six months. The web hosting company cannot deploy the needed resources in a new data center in time for the sale. They opt to purchase services from a cloud service provider using a pay-as-you-go model.
Over the next two weeks, Layer 2 connectivity is established between the two sites. The web hosting company's IT staff works with the CSP to configure the necessary physical and virtual infrastructure. All traffic to the public cloud is routed through the private data center, across the Layer 2 connection. A local load balancer is deployed in the private data center. Orchestration tools are configured to burst the service into the public cloud automatically when utilization reaches 80%."
After viewing the weekly trending analysis, you notice that the cost of resources allocated does not correspond to resource utilization. And the billing statement from the cloud service provider (CSP) reflects higher than expected charges.
What is the most effective action to take to rectify the discrepancy?

A) Contact the CSP representative and renegotiate the terms of service of the contract
B) Contact the CSP representative and negotiate a fixed cost model
C) Terminate the contract with the CSP and sign a contract with a public provider that better integrates with the solution
D) Verify that the orchestration engine is configured to trigger the collapse of the underutilized resources

2. 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 IOPS per GB for volumes
C) Low growth rate for volumes
D) Target-based deduplication

3. A university is building a private cloud. They plan to offer services to students, faculty, and staff. Each group has access to different levels of sensitive data with different performance characteristics. In addition, the university must comply with FERPA and HIPAA regulations for a small number of services.
What should a cloud architect recommend to the university during the cloud design phase?

A) Implement multi-tenancy trust zones through the service catalog for regulated data. Implement
RBAC through the service catalog to protect student, faculty and staff data. Create resource pools to support the performance characteristics.
B) Implement multi-tenancy trust zones through the service catalog for students, faculty, and staff.
Implement RBAC through the service catalog to protect regulated data.
Create resource pools to support the performance characteristics.
C) Implement multi-tenancy trust zones through the service catalog for students, faculty, and staff.
Implement IT security mechanisms to protect regulated data.
Create resource pools to support the performance characteristics.
D) Implement multi-tenancy trust zones through the service catalog for students, faculty, and staff.
Implement service orchestration to support the performance requirements.
Create resource pools to restrict access to regulated data.

4. 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) Fixed
C) Pay-as-you-go
D) Guaranteed

5. An enterprise's IT department is transitioning to ITaaS. The IT department is developing a service management methodology. They are uncertain about how much of the measurement data should be stored, and for how long. One consideration is the trade-off between storage cost and data granularity.
What would you, the cloud architect, recommend as a best practice?

A) Keep only peaks and averages for a longer period of time. This minimizes query time, protection, and recovery issues.
B) Keep all raw data, given that storage costs are relatively low.
C) Store as much monitoring data as possible given cost constraints. This enables future diagnosis and offers visibility into SLA compliance.
D) Keep more granular data than just peaks and averages. This allows a higher level of monitoring at reasonable cost, given deduplication and compression.

Solutions: