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EMC E20-918 Exam Syllabus Topics:

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

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

2. A regional accounting and analytics firm headquartered in Seattle, WA has built a profitable business selling a portfolio of financial services to several large local enterprises. The company's flagship applications process large volumes of enterprise-internal financial data within IT operations.
Recently, the firm has established small remote offices in Hong Kong, Seoul, and Beijing to grow in the Far East.
The business is critically dependent on its data processing capabilities, and recognizes the need for ITaaS transformation. They are seeking guidance on a suitable IT governance model.
What type of model should you recommend, and why?

A) Hybrid by location and application, to eliminate silos and promote growth
B) Federated by application, to ensure creation of customized services for each application
C) Distributed by geography, to address different regional regulations
D) Centralized at headquarters, to maximize security and minimize compliance risk

3. Refer to Scenario 1 below.
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.
What can the IT department do to resolve problems (b) and (d)?

A) Standardize on a subset of offerings to meet the needs of most developers and minimize the number of customization options
B) Decrease the number of IaaS offering variations and customization options
C) Provide separate resource pools for the application developers and the data scientists and manage the pools separately
D) Meter usage patterns and implement a showback mechanism to influence consumer behavior when choosing specific resources

4. An organization is expanding its private cloud to a hybrid deployment to accommodate growth in its web / database application. The CIO is concerned about the security risks associated with the public cloud. They do not view firewall security as adequate to protect important company data. Encryption is being considered as a security measure.
As the cloud architect, what would you recommend?

A) Utilize database encryption.
Tell the CIO that search look-ups can be resource intensive.
B) Utilize application encryption.
Tell the CIO that the level of control is very granular, and developer resource requirements are
minimal.
C) Utilize application encryption.
Tell the CIO that search look-ups can be resource intensive.
D) Utilize database encryption.
Tell the CIO that the level of control is very granular, but substantial developer resources are
required.

5. A company is deploying a major new business application. The application development has been outsourced to several organizations.
The company has conducted several workshops with all suppliers and the testing team. The outcome of their efforts is a streamlined process that has dramatically reduced the cycle time from development to test, improved communications between all groups, and implemented common standards and objectives.
What have they achieved?

A) Transition to a DevOps culture
B) Implementation of common collaboration tools
C) Utilization of configuration management methodologies
D) Use of common automation and orchestration processes

Solutions: