Summarize Cloud Concepts

Question 1

is a service that provides on demand 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

is the system’s ability to handle increasing or decreasing workloads and demand by adding or removing resources, such as CPU, memory, or storage, as needed.

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

• 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.

Answer 7

Cloud Deployment Models

Question 8

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

Answer 8

cloud service providers (CSPs)

Question 9

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

Answer 9

Multicloud architectures

Question 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)

Answer 10

cloud service models

Question 11

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

Answer 11

Infrastructure as a service (IaaS)

Question 12

is a different model of provisioning software
applications within a web browser, screen sharing programs: Gmail, Dropbox and Microsof 365.

Answer 12

Software as a service (SaaS)

Question 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

Answer 13

Platform as a service (PaaS)

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

is the process of keeping files up to date and consistent across multiple devices or locations.
* Dropbox
* Google Drive

Answer 15

file synchronization

Question 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

Answer 16

Content Delivery Network (CDN)

Question 17

is a physical location where networks can exchange traffic.

Answer 17

Internet exchange points (IXPs)

Question 18

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

Answer 18

Software-defined networking (SDN)

Question 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.

Answer 19

application programming interface (API)

Question 20

Instead of managing physical computers and their infrastructure on-site, organizations use a provider to host and manage virtual desktops. This approach simplifies IT management, enhances security, offers scalability, and enables remote and hybrid workforces. provides virtual desktop environments to users remotely
* while IaaS (Infrastructure as a Service) offers core computing resources like virtual servers, storage, and networking.

Answer 20

Desktop as a Service (DAAS)

Question 21

is a cloud-based service model that delivers networking services, such as bandwidth, security, and network management, on demand, typically on a subscription or pay-as-you-use basis.

Answer 21

NAAS

Question 22

Provide resources when and as needed, while metered services specifically define and charge for those resources based on usage units like data transfer or compute hours.

Answer 22

On-demand

Question 23

is the concept where a cloud provider groups vast amounts of physical and virtual resources, such as computing power, memory, storage, and network bandwidth, and then dynamically allocates them to multiple customers (users) as needed.

Answer 23

resource pooling