Summarize Cloud Concepts

Question 1

is a service that provides ondemand resources—server instances, file storage, databases, or applications—over a network, typically the Internet.

Answer 1

cloud computing

Question 2

The per-use billing for resources consumed by the cloud is referred to as

Answer 2

metered utilization

Question 3

means that the cloud service experiences very little downtime. Downtime can occur as a result of scheduled maintenance and unexpected outages.

Answer 3

High availability (HA)

Question 4

means that the costs involved in supplying the cloud service to more users are linear

Answer 4

Scalability

Question 5

refers to the system’s ability to handle changes to demand
in real time.

Answer 5

Rapid elasticity

Question 6

The layers of virtualization used in the cloud
architecture allow the provider to provision more CPU, memory, disk, or network resource using management software, rather than (for instance) having to go to the datacenter floor, unplug a server, add a memory module, and reboot.

Answer 6

shared resources

Question 7

Cloud Deployment Models

Answer 7

• Public-subscriptions or pay-as-you-go
• Private-is completely private to and owned by the
  organization.
• Community-several organizations share the costs of either a hosted private or fully private cloud.
• Hybrid-that implements some sort of hybrid public/private/community.

Question 8

is a company that offers cloud-based services to individuals and businesses.

Answer 8

cloud service providers (CSPs)

Question 9

Multicloud architectures

Answer 9

are where the consumer
organization uses services from more than one CSP.

Question 10

cloud service models

Answer 10

the way computing services are delivered through the internet, where users access applications and infrastructure as a service rather than owning the physical hardware and software:
* Infrastructure as a Service
* Software as a service (SaaS)
* Platform as a service (PaaS)
*

Question 11

is a means of provisioning IT resources, such as
servers, load balancers, and storage area network (SAN) components, quickly.

Answer 11

Infrastructure as a service (IaaS)

Question 12

Software as a service (SaaS)

Answer 12

is a different model of provisioning software
applications.

Question 13

Platform as a service (PaaS)

Answer 13

a cloud computing model where a third-party provider delivers a development environment, including hardware and software tools, over the internet, allowing users to build, run, and manage applications without having to manage the underlying infrastructure;

Question 14

is a way to access a company’s computer systems remotely from any device. It’s a type of desktop virtualization that uses virtual machines (VMs) to run desktop environments on a central server.

Answer 14

Virtual desktop infrastructure (VDI)

Question 15

file synchronization

Answer 15

is the process of keeping files up to date and consistent across multiple devices or locations. It’s also known as file sync.
* Dropbox
* Google Drive

Question 16

Content Delivery Network (CDN)

Answer 16

is a geographically distributed network of servers that stores copies of website content, like images, videos, and HTML files, in data centers around the world, allowing users to access content from a server geographically closer to them, resulting in faster loading times and improved performance

Question 17

Internet exchange points (IXPs)

Answer 17

is a physical location where networks can exchange traffic.

Question 18

Software-defined networking (SDN)

Answer 18

is a network management approach that uses software to control and manage networks

Question 19

application programming interface (API)

Answer 19

are a set of rules and protocols that define how applications exchange data, features, and functionality. is a software intermediary that allows different applications to communicate with each other.