Describe cloud concepts

Question 1

What is cloud computing?

Answer 1

Cloud computing is the delivery of computing services over the internet.

Question 2

Computing services include

Answer 2

Common IT infrastructure such as virtual machines, storage, databases, and networking. Cloud services also expand the traditional IT offerings to include things like Internet of Things (IoT), machine learning (ML), and artificial intelligence (AI).

Question 3

What is shared responsibility model?

Answer 3

Responsibilities get shared between the cloud provider and the consumer.

Question 4

Responsibility of the cloud provider

Answer 4

Physical security, power, cooling, and network connectivity are the responsibility of the cloud provider. The consumer isn’t collocated with the datacenter, so it wouldn’t make sense for the consumer to have any of those responsibilities.

Question 5

Responsibility of the consumer

Answer 5

Responsible for the data and information stored in the cloud. The consumer is also responsible for access security, meaning you only give access to those who need it.

Question 6

IaaS places most responsibility on who?

Answer 6

IaaS places the most responsibility on the consumer, with the cloud provider being responsible for the basics of physical security, power, and connectivity.

Question 7

SaaS place responsibility on who?

Answer 7

SaaS places most of the responsibility with the cloud provider.

Question 8

PaaS places responsibility on who?

Answer 8

PaaS, being a middle ground between IaaS and SaaS, rests somewhere in the middle and evenly distributes responsibility between the cloud provider and the consumer.

Question 9

You’ll always be responsible for:

Answer 9

• The information and data stored in the cloud
• Devices that are allowed to connect to your cloud (cell phones, computers, and so on)
• The accounts and identities of the people, services, and devices within your organization

Question 10

The cloud provider is always responsible for:

Answer 10

• The physical datacenter
• The physical network
• The physical hosts

Question 11

Your service model will determine responsibility for things like:

Answer 11

• Operating systems
• Network controls
• Applications
• Identity and infrastructure

Question 12

What are the 3 cloud models

Answer 12

The three main cloud models are: private, public, and hybrid.

Question 13

Private Cloud

Answer 13

• Private cloud provides much greater control for the company and its IT department.
• Comes with greater cost and fewer of the benefits of a public cloud deployment.
• Finally, a private cloud may be hosted from your on site datacenter.
• It may also be hosted in a dedicated datacenter offsite, potentially even by a third party that has dedicated that datacenter to your company.

Question 14

Public cloud

Answer 14

A public cloud is built, controlled, and maintained by a third-party cloud provider. With a public cloud, anyone that wants to purchase cloud services can access and use resources. The general public availability is a key difference between public and private clouds.

Question 15

Hybrid cloud

Answer 15

A hybrid cloud is a computing environment that uses both public and private clouds in an inter-connected environment. A hybrid cloud environment can be used to allow a private cloud to surge for increased, temporary demand by deploying public cloud resources.

Question 16

Public cloud advantages

Answer 16

• No capital expenditures to scale up
• Applications can be quickly provisioned and deprovisioned
• Organizations pay only for what they use
• Organizations don’t have complete control over resources and security

Question 17

Private cloud advantages

Answer 17

• Organizations have complete control over resources and security
• Data is not collocated with other organizations’ data
• Hardware must be purchased for startup and maintenance
• Organizations are responsible for hardware maintenance and updates

Question 18

Hybrid advantages

Answer 18

• Provides the most flexibility
• Organizations determine where to run their applications
• Organizations control security, compliance, or legal requirements

Question 19

Multi-cloud

Answer 19

You use multiple public cloud providers

Question 20

Azure Arc

Answer 20

• Set of technologies that helps manage your cloud environment.
• Can help manage your cloud environment, whether it’s a public cloud solely on Azure, a private cloud in your datacenter, a hybrid configuration, or even a multi-cloud environment running on multiple cloud providers at once.

Question 21

Azure VMware Solution

Answer 21

Lets you run your VMware workloads in Azure with seamless integration and scalability.

Question 22

Benefits of the consumption-based model

Answer 22

• No upfront costs.
• No need to purchase and manage costly infrastructure that users might not use to its fullest potential.
• The ability to pay for more resources when they’re needed.
• The ability to stop paying for resources that are no longer needed.

Question 23

Capital expenditure (CapEx)

Answer 23

CapEx is typically a one-time, up-front expenditure to purchase or secure tangible resources.
A new building, repaving the parking lot, building a datacenter, or buying a company vehicle are examples of CapEx.

Question 24

Operational expenditure (OpEx)

Answer 24

OpEx is spending money on services or products over time. Renting a convention center, leasing a company vehicle, or signing up for cloud services are all examples of OpEx.

Question 25

Compare cloud pricing models

Answer 25

• Plan and manage your operating costs.
• Run your infrastructure more efficiently.
• Scale as your business needs change.