Chapter 4 Fundamental Concepts and Models
答案是我自己做的，有错误欢迎指正
单选题
1
__represents the physical perimeter(边界) that surrounds a set of IT resources that are owned and governed by an organization…
A
Organizational Boundary
B
Increased Security Vulnerabilities
C
Trust Boundary
D
ubiquitous access
答案：A
这里抄一下煜大佬的笔记
边界：
组织边界（organizational boundary）：是一个物理范围（physical perimeter），包括由一家组织拥有和管理的IT资源的集合。
信任边界（trust boundary）：是一个逻辑范围（logical perimeter），通常会跨越物理边界，表明IT资源受信任的程度。
2
___is person or organization responsible for administering a cloud-based IT resource (including cloud services).
A
Elasticity
B
Cloud Resource Administrator
C
measured usage
D
Cloud Service Owner
答案：B
云计算的角色
Cloud Consumer ：Organisation/persons that have a formal contract or arrangement with a cloud provider to use cloud-based IT resources.
云消费者与云提供者之前存在合约来使用IT资源
Cloud Service Owner
Organization/person that legally own a cloud service. Can be a cloud consumer or provider, but not necessarily the consumer of the cloud service.
云服务的拥有者，合法的拥有云服务，可以是云的提供者和消费者，但不一定是云的消费者。
Cloud Resource Administrator
Organization/persons responsible for the administration of a cloud-based IT resource (e.g. cloud provider, consumer or third-party).
- can be with a cloud consumer organization and administer remotely accessible IT resources that belong to the cloud consumer/ or it can be with the provider organization
云服务的资源管理者，对管理基于云的IT资源负责。
Cloud Provider
Organisation providing cloud-based IT resources.
Responsible for making and achieving SLA guarantees.
Normally owns the IT resources, but can resell IT resources from other cloud providers.
云提供商，提供基于云的IT资源，负责制定和实现SLA保证（service-level agreement 云提供商与云用户签署的负责保证云服务标准的协议），通常拥有IT资源，但也可以负责销售其他云提供者的IT资源。
3
___is a logical perimeter that typically spans beyond physical boundaries to represent the extent to which IT resources are trusted
A
Trust Boundary
B
Organizational Boundary
C
physical boundaries
D
multitenancy
答案：A
信任边界是描述资源的受信任程度的逻辑边界
4
In definitions of cloud computing, which is not the characteristic of cloud computing?
A
scalable and elastic
B
pay-per-use and self-service
C
ubiquitous and on-demand
D
unmeasurable and unrecoverable
答案：D
云服务是可以测量使用情况，也可以恢复的
继续偷个懒抄笔记：
六个基本特性：
（1）按需使用 on-demand usage
云用户可以单边访问（unilaterally access）基于云的IT资源，给予云用户自助（self-provision）提供 IT 资源的自由。
（2）随处访问/泛在接入（ubiquitous access）
the ability for a cloud service to be widely accessible.一个广泛访问的能力。
（3）多租户（和资源池）multitenancy（and resource pooling）
一个软件程序的实例能够服务不同的用户，用户之间是互相隔离（isolated from the other）。
资源池允许云提供者把大量IT资源放到一起为多云用户(multiple cloud consumer)服务。
（4）弹性 elasticity
云根据运行时条件或云用户或云提供者事先确定的要求，自动透明地扩展IT资源（automated ability to transparently scale IT resource）。
（5）可测量的使用 measured usage
云平台记录对IT资源使用情况的能力。
（6）可回复性 resiliency
可恢复性计算（resilient computing）是一种故障转移（failover）的形式，它在多个物理位置分放IT资源的冗余实现（redundant implementation）。
5
In definitions of cloud computing, which is the characteristic of cloud computing?
A
unmeasurable
B
flat-fee
C
ubiquitous
D
unrecoverable
答案：
ubiquitous 随处的
6
Cloud Delivery Models includes
A
Infrastructure-as-a-Service, Platform-as-a-Service, Software-as-a-Service
B
Public cloud, Community cloud, Private cloud, Hybrid cloud
C
cloud providers
D
administrator
答案：A
云交付模型
7
Cloud Deployment Models include
A
Infrastructure-as-a-Service, Platform-as-a-Service, Software-as-a-Service
B
Public cloud, Community cloud, Private cloud, Hybrid cloud
C
cloud providers
D
administrator
答案 ：B
云开发模型
8
__ is the person or organization that legally owns a cloud service.
A
Cloud Resource Administrator
B
Cloud Service Owner
C
Cloud Consumer
D
cloud provider
答案：B
云服务中各个角色
9
Which Cloud Delivery Models did grant（授权） to cloud consumer owning the highest level control of IT resource?
A
infrastructure-as-a-Service
B
Platform-as-a-Service
C
Software-as-a-Service
D
private cloud
答案：A
硬件设施是最底层的
10
__represents a specific type of cloud environment, primarily distinguished by ownership, size, and access
A
cloud deployment model
B
Cloud Delivery Models
C
Cloud Consumer
D
cloud provider
答案：A
云开发模型中是按环境和拥有者的类型，访问权限进行划分的云环境。
简答题
What are Cloud Characteristics?
答案：
Cloud Consumer ：Organisation/persons that have a formal contract or arrangement with a cloud provider to use cloud-based IT resources.
Cloud Service Owner
Organization/person that legally own a cloud service. Can be a cloud consumer or provider, but not necessarily the consumer of the cloud service.
Cloud Resource Administrator
Organization/persons responsible for the administration of a cloud-based IT resource (e.g. cloud provider, consumer or third-party).
- can be with a cloud consumer organization and administer remotely accessible IT resources that belong to the cloud consumer/ or it can be with the provider organization
Cloud Provider
Organisation providing cloud-based IT resources.
Responsible for making and achieving SLA guarantees.
Normally owns the IT resources, but can resell IT resources from other cloud providers.