E20-920 시험 - EMC실제시험문제와 답 - 159문항

Question No : 1

A European company has been providing web services within their private cloud. They now wish to make these web services available globally by using a public cloud provider. You are hired as a cloud architect to help them with this transition. In your analysis, you find that a different hypervisor is being used by the public cloud provider.
As the enterprise elastically provisions resources, what is a possible solution if the hypervisors are different?

A.Modify the access role in the current service template to allow connection to the public cloud
B.Recalibrate the current service template and deploy it in the public cloud
C.Define a different service template to deploy in the public cloud
D.Use a second service catalog to deploy the existing service template in the public cloud

정답:
Explanation:
Since the orchestration engine is really multiple layers of software working together to create a service, it is critical that all of the layers can talk to each other. Hypervisor integration is critical, but one should also consider that hypervisors may be different between the internal and public clouds. The service catalog orchestration component needs the ability to talk to different hypervisors. Otherwise, an intermediate step will need to be developed for translation or conversion with the other hypervisor. Automation of this intermediate step may require extra development. Similar situations may occur with integration with physical resources or other management processes like metering and chargeback.

Question No : 2

What is characteristic of the IT-as-a-Service phase of IT transformation?

A.Automation
B.Chargeback
C.Service level management
D.Shared resource pools

정답:
Explanation:
https://www.emc.com/collateral/software/white-papers/h10801-stepstoitaas-wp.pdf

Question No : 3

An organization will be deploying services in a new private cloud infrastructure. The organization has a strong enterprise and IT governance framework in place.
How will this framework likely be enhanced in the new cloud environment?

A.Policies will be added that support each component of the service lifecycle
B.Policies will be added that support the addition of availability zones
C.The enterprise governance board will be expanded to include cloud architects
D.IT silos will be replaced with a business oriented framework

정답:

Question No : 4

A company is assessing the cloud maturity of their existing capabilities.
Which components should be analyzed to establish the baseline maturity?

A.Self-service, broad network access, resource pooling, rapid elasticity, measured service
B.Service catalog, plenty of bandwidth, virtualization, software defined networks, software defined storage
C.SLA, SaaS, PaaS, IaaS
D.Self-service, broad network access, measured service, SLA

정답:

Question No : 5

An IT organization in a technology company is in the process of adopting cloud services in an ITaaS model. They are seeking to reduce their operating costs while delivering business aligned services.
What is the most effective way to do so?

A.Implementing automation in delivery of services
B.Increasing utilization by encouraging multi-tenancy
C.Implementing a service catalog and enabling self-service
D.Aligning IT staff with lines of business to ensure agreement with business objectives

정답:

Question No : 6

An organization is categorizing their existing services against service characteristics to determine how ready each one might be for the catalog. Part of this effort involves looking at the following three attributes for each service characteristic: considerations, benefits, and tradeoffs.
What attributes correspond to the following characteristics: Loosely Coupled, Idempotent, and Service Contract?

A.Consideration: late or dynamic binding of services Benefit: development and implementation cost reduction Tradeoff: complexity grows as number of services increases
B.Consideration: late or dynamic binding of services Benefit: improves reliability and scale Tradeoff: high degree of cooperation and agreement of design standards and conventions
C.Consideration: standardized service contracts and metadata definitions Benefit: improves reliability and scale Tradeoff: complexity grows as number of services increases
D.Consideration: standardized service contracts and metadata definitions Benefit: development and implementation cost reduction Tradeoff: high degree of cooperation and agreement of design standards and conventions

정답:
Explanation:
Idempotent improves reliability and scale
Loosely coupled Late or dynamic binding of services
Service Contract Higj degree of cooperation and agreement of desging

Question No : 7

What is an example of an overall governance principle for deploying cloud services?

A.Increase IT staff skillsets no
B.Accommodate all workloads no
C.Reduce IT operating costs
D.Reduce custom services no

정답:

Question No : 8

What key features do Web Scale infrastructure and applications share that contribute to their success?

A.Intelligent hyper-optimized applications, clustered architecture, low OPEX, and HA design
B.HA design, distributed architecture, low OPEX, and design for failure
C.Clustered architecture, design for failure, HA design, and intelligent hyper-optimized applications
D.Design for failure, intelligent hyper-optimized applications, distributed architecture, and low OPEX

정답:
Explanation:

Question No : 9

An organization is using a hybrid cloud for services. Services are designed to use Load Balancers.
Orchestration workflows are designed so that services instances are placed in multiple fault domains.
Why are services designed in such a manner?

A.Minimize impact of security breech
B.Mitigate risk to service availability
C.Mitigate risk to service integrity
D.Minimize impact of governance policies

정답:

Question No : 10

An organization has been providing web services within their private cloud. The web services, deployed through a service catalog, depend on a database resource in the private cloud.
The organization decided to make these web services availability globally by using a public cloud provider.
However, once of the web services were deployed into the public cloud, users started complaining about poor performance.
Which solution would most likely improve performance of the web services.

A.Balance the load globally across multiple instances of the database
B.Re-architect the web-service to be deployed as a month coupled
C.Re-architect the web-service to be loosely coupled with the database
D.Balance the load globally across multiple instances of the web service.

정답:
Explanation:
Because things fail, it is important for cloud architects to design with the assumption that the underlying microservices infrastructure can and will fail.
However, when appropriately designed, nothing will really fail. The goal is applications that continue to function―even if the underlying physical hardware fails or is removed or replaced. One way to accomplish this goal is to avoid “single points of failure.” For example, having a distributed architecture supporting multiple instances, allows the infrastructure to reorganize service workloads as required .

Question No : 11

An IT organization is in the process of transitioning to an ITaaS model and adopting cloud services.
The Chief Information Officer (CIO) is very concerned about the cultural shift in mindset that will be required in order to achieve success.
What might this concern be?

A.It has to change from reacting to problems towards proactively creating services that meet business needs.
B.IT staff have to learn to focus only IT efficiently and costs
C.Lines of business have to culturally change and only adopt IT’s service offering to prevent Shadow IT
D.External service providers have to be retained to educate IT stuff on operating like one of them

정답:

Question No : 12

An organization wishes to more efficiently produce services by unifying processes and methods from various departments to provide more cross functional integration. To achieve these goals, all elements of the infrastructure will be software driven and manual processes will be automated as much as possible.
What practice is this organization trying to adopt?

A.DevOps
B.Service Oriented Architecture
C.Governance
D.Agile

정답:

Question No : 13

A service provider is starting a new business for providing cloud services.
However, they are concerned that their cloud infrastructure design needs to be validated by usage over time and then adjusted to handle heavy loads.
What can they do to mitigate this concern with paying customers?

A.Not accept any heavy loads until the design has been validated
B.Re-design their cloud infrastructure to accommodate heavy loads
C.Design their costing model to include loss of unhappy customers
D.Include a reimbursement policy for service outages in the SLA

정답:
Explanation:
Sin explicacion en el manual.

Question No : 14

An IT department is using a number of tools to automate the expansion and contraction of the cloud resource pools.
Which cloud feature are they implementing?

A.Elasticity
B.Monitoring
C.Trust zones
D.Chargeback

정답:
Explanation:
The orchestration engine is also the primary interface for service elasticity. If you allow consumers to provision virtual machines dynamically in order to absorb load changes, then they need to have access to the orchestration APIs to make this happen. The orchestration engine can again create and remove services as needed and trigger updates to CMDB and chargeback mechanisms.
https://docs.tibco.com/pub/silver_fabric/5.7.0/doc/html/fabric-introduction/wwhelp/wwhimpl/common/html/wwhelp.htm#context=fabric-introduction&file=fabric-overview.03.2.htm

Question No : 15

The principles of Autonomy, Abstraction, Discoverability, Composability, and Reusability are all principles of what?

A.Application profiling
B.Service inventory
C.Delivery models
D.Service characteristics

정답:
Explanation:

https://www.slideshare.net/MohamedZakarya2/soa-principles-4service-loose-coupling

EMC E20-920 시험