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

1. Refer to Scenario 5.
Refer to the exhibit.

An innovative high-end graphics and multimedia 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.
-- 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) Use of thin provisioning for volumes
C) Low capacity growth rate for volumes
D) Target-based deduplication

2. 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 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) Support for multiple CMDB systems
B) Integration of multiple hypervisors
C) Tenant separation
D) On-demand resource pool creation

3. A start-up cloud provider is evaluating potential resource allocation models to use for reserving client resources. Their service offering targets software development and testing.
Which model would be most suitable?

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

4. What is a key design consideration for a service provider to ensure that they can effectively process the termination of a service instance?

A) Incorporate a service grace period to prevent the actual deletion of the instance
B) Incorporate a retention period for private user data and user PCI data
C) Provide a chargeback bill or showback report
D) Archive the associated service data regardless of the user requirements

5. Refer to Scenario 7.
-- Exhibit -
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%.
-- Exhibit -
To test the functionality of the new infrastructure, a load simulator is used to increase utilization on the servers. At 80% utilization, the orchestration tools provision the required resources in the public cloud. However, the utilization on the private cloud resources continues to increase, while the utilization on the public cloud resources remains at 0%.
What is the most likely cause of this problem?

A) The wrong VLANs are configured across the network link
B) The wrong subnets are configured across the network link
C) The local load balancer is not being updated with the new service information
D) The global load balancer is not being updated with the new service information

Solutions: