Describe cloud concepts: Describe cloud computing

Question 1

What is cloud computing?

Answer 1

Cloud computing is the delivery of computing services, such as virtual machines, storage, databases, and networking, over the internet using a pay-as-you-go pricing model.

Question 2

What are the basic services provided by all cloud providers?

Answer 2

Compute power and storage.

Question 3

How does cloud computing save costs?

Answer 3

By enabling a pay-as-you-go model, avoiding upfront costs, and scaling resources as needed.

Question 4

What is the shared responsibility model?

Answer 4

A framework that defines the division of responsibilities between the cloud provider and the customer based on the service model (IaaS, PaaS, SaaS).

Question 5

In the shared responsibility model, what is always the customer’s responsibility?

Answer 5

Managing data, devices connecting to the cloud, and user accounts and identities.

Question 6

In the shared responsibility model, what is always the cloud provider’s responsibility?

Answer 6

Physical datacenters, physical networks, and infrastructure security.

Question 7

How does responsibility differ in IaaS, PaaS, and SaaS?

Answer 7

IaaS: Customer manages most resources.
PaaS: Responsibility is shared more evenly.
SaaS: Provider manages almost everything except user data and access.

Question 8

What is a public cloud?

Answer 8

A cloud model where resources are shared across multiple organizations and managed by a third-party provider.

Question 9

What is a private cloud?

Answer 9

A cloud model dedicated to a single organization, either on-premises or hosted by a provider.

Question 10

What is a hybrid cloud?

Answer 10

A cloud model that combines public and private clouds to allow data and applications to be shared between them.

Question 11

What is a multi-cloud model?

Answer 11

A scenario where multiple public cloud providers are used simultaneously, either for different features or as part of a migration strategy.

Question 12

What is Azure Arc?

Answer 12

A set of technologies for managing resources across public clouds, private clouds, and hybrid environments.

Question 13

What is the Azure VMware Solution?

Answer 13

A service that allows organizations to run VMware workloads in Azure with seamless integration and scalability.

Question 14

What is the difference between CapEx and OpEx?

Answer 14

CapEx: Upfront costs for physical infrastructure.
OpEx: Ongoing costs for services, such as cloud computing.

Question 15

How does the consumption-based model work in cloud computing?

Answer 15

Customers pay only for the IT resources they use, scaling resources up or down as needed without paying for unused capacity.

Question 16

What are the benefits of the consumption-based model?

Answer 16

No upfront costs.
No need to purchase and maintain costly infrastructure.
Pay for resources only when they are needed.
Easily scale resources as business needs change.

Question 17

How does the consumption-based model help with cost management?

Answer 17

By allowing businesses to monitor real-time usage, plan operating costs, and adjust resource deployment dynamically.

Question 18

When is a public cloud the best choice?

Answer 18

For businesses needing scalability and cost-efficiency without managing infrastructure.

Question 19

When is a private cloud the best choice?

Answer 19

For organizations requiring high security, compliance, and full control over resources.

Question 20

Why would a business choose a hybrid cloud?

Answer 20

To balance control and flexibility by keeping sensitive data on-premises while leveraging public cloud scalability.

Question 21

What scenarios benefit from a multi-cloud model?

Answer 21

Leveraging unique features from different providers.
Migrating between cloud providers.

Question 22

How does cloud computing improve scalability?

Answer 22

By allowing businesses to add or remove resources dynamically based on demand.

Question 23

How does cloud computing enhance operational efficiency?

Answer 23

Through features like automated updates, resource monitoring, and template-based deployments.

Question 24

What tools are available to help estimate cloud costs?

Answer 24

Tools like the Total Cost of Ownership (TCO) and Pricing Calculator.