Describe cloud concepts: Describe cloud service types

Question 1

What is the primary characteristic of Infrastructure as a Service (IaaS)?

Answer 1

IaaS provides maximum control of cloud resources, where you manage operating systems, network configuration, and storage, while the provider manages the hardware and internet connectivity.

Question 2

What are the main responsibilities of the user in the shared responsibility model for IaaS?

Answer 2

Users are responsible for installation, configuration, patching, updates, and security of the operating systems and applications.

Question 3

What scenarios are ideal for using IaaS?

Answer 3

Lift-and-shift migration.
Testing and development environments.

Question 4

How does Platform as a Service (PaaS) differ from IaaS?

Answer 4

In PaaS, the cloud provider manages not only the hardware but also operating systems, middleware, development tools, and business intelligence services.

Question 5

What is the user responsible for in a PaaS environment under the shared responsibility model?

Answer 5

Users may manage networking settings, connectivity, application security, and directory infrastructure.

Question 6

What are common scenarios where PaaS is useful?

Answer 6

Development frameworks for building or customizing applications.
Analytics or business intelligence tools for data mining and predictive insights.

Question 7

What is Software as a Service (SaaS)?

Answer 7

SaaS is a fully developed application hosted in the cloud, requiring minimal technical knowledge to use.

Question 8

What responsibilities fall to the user in a SaaS model?

Answer 8

Managing data inputs.
Controlling devices and user access to the system.

Question 9

What responsibilities does the cloud provider have in SaaS?

Answer 9

Providers manage application development, patching, physical security, and network connectivity.

Question 10

What are some examples of SaaS applications?

Answer 10

Email, messaging, financial software, and business productivity tools.

Question 11

Which cloud service model offers the most control to the user?

Answer 11

Infrastructure as a Service (IaaS).

Question 12

Which cloud service model has the least user responsibility?

Answer 12

Software as a Service (SaaS).

Question 13

What cloud service model is best for developers needing a complete development environment?

Answer 13

Platform as a Service (PaaS).

Question 14

What is the shared responsibility model in cloud services?

Answer 14

A framework that defines which responsibilities are managed by the cloud provider and which are managed by the user.

Question 15

What benefits do cloud service models offer businesses?

Answer 15

Scalability, reduced costs, and flexibility in managing and deploying resources.

Question 16

In IaaS, what does “lift-and-shift migration” mean?

Answer 16

Moving on-premises workloads to cloud infrastructure with minimal changes to applications.

Question 17

Why is IaaS considered the most flexible cloud service?

Answer 17

It allows complete control over operating systems, networking, storage, and applications.

Question 18

What does PaaS eliminate the need for?

Answer 18

Managing infrastructure, operating systems, and development tools.

Question 19

How does PaaS enhance developer productivity?

Answer 19

By providing built-in scalability, high availability, and multi-tenant capabilities.

Question 20

What are the key limitations of SaaS for users?

Answer 20

Limited customization and reliance on the cloud provider for updates and maintenance.

Question 21

How does SaaS reduce technical complexity for businesses?

Answer 21

It removes the need for managing infrastructure, development, or maintenance.

Question 22

How does the shared responsibility model differ between IaaS, PaaS, and SaaS?

Answer 22

IaaS requires the most user responsibility, PaaS shares responsibilities, and SaaS places most responsibilities with the provider.

Question 23

Why is understanding the shared responsibility model crucial for cloud adoption?

Answer 23

To ensure that both the user and provider fulfill their roles for security and maintenance.

Question 24

Which cloud service model is best suited for email and messaging applications?

Answer 24

Software as a Service (SaaS).

Question 25

When should a business consider using PaaS for analytics?

Answer 25

When they need tools for data mining, insights, and predictive outcomes without managing infrastructure.

Question 26

Why might a business choose IaaS for development and testing environments?

Answer 26

It allows rapid creation, replication, and control over test environments.