E20-918最も有効な質問と解答で勉強

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EMC E20-918 試験シラバストピック:

EMC IT-as-a-Service Expert Exam for Cloud Architects 認定 E20-918 試験問題：

1. A financial company has made several acquisitions within the past few years. They currently have two primary data centers that are 50 km apart. Recently, an internal assessment was conducted to explore ways to improve ingress/egress utilization and to extend their firewall to the cloud.
Which type of firewall would best suit their needs?

A) Reverse proxy servers
B) Federated
C) Linked VPN
D) Load balanced reverse proxy servers

2. 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%."
During the first day of increased usage, the network link between your data center and the CSP fails due to an external problem. You need to design an alternate solution to prevent degradation in the service offering.
Which solution would provide the best performance for the end user?

A) Deploy a global load balancer and change the IP addresses for the servers in the public cloud
B) Change the configuration of the local load balancer and retain the IP addresses on the servers in the public cloud
C) Change the configuration of the local load balancer and change the IP addresses for the servers in the public cloud
D) Deploy a global load balancer and retain the IP addresses on the servers in the public cloud

3. The marketing line of business of an enterprise 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 loosely coupled design and have no content dependencies on any resources in the private cloud. They are created from a standard PaaS template, 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. No layer 2 connectivity exists between the private and public clouds. The consumers of these web services are distributed across the globe.
Which solution would you recommend to best support the web service elasticity and to minimize service network latency for the consumer?

A) Deploy a central database server to consolidate web service content.
B) Implement an encrypted VPN tunnel between the private and public clouds.
C) Implement a global load balancing service as a front-end for the web services.
D) Increase bandwidth between the private cloud and the Internet.

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.
Which solution would you recommend to best support the web service high availability and minimize service network latency for the consumer?

A) Implement a Layer 7 firewall within the public cloud to filter out unnecessary traffic.
B) Implement a QoS policy that provides a higher priority to http traffic.
C) Implement a global load balancing service as a front-end for the web services.
D) Use a content delivery network to distribute static web content.

5. A company is deploying a major new business application. The company has difficulty managing the software development lifecycle. As a result, the time from generating requirements to operational delivery is significant.
Which best addresses the company's need for shorter release cycles and better code quality?

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

質問と回答：