Types of Cloud Systems

Question 1

What is IaaS (Infrastructure as a Service)?

Answer 1

IaaS is renting the building blocks of a computer (servers, storage, networking) from the cloud. You have to set everything up yourself, like buying furniture for an empty house.

Question 2

What are the advantages of IaaS?

Answer 2

1. Flexible: Create and delete servers as needed.
2. Cost-effective: No need to buy physical servers.
3. Control: You decide everything—how the operating system works, what apps are installed, etc.

Question 3

What are the disadvantages of IaaS?

Answer 3

1. Complex: You have to manage everything (install software, update systems, etc.).
2. Technical skills needed: You must know how to set things up.

Question 4

What is PaaS (Platform as a Service)?

Answer 4

PaaS provides a ready-to-use workspace to build your apps, like renting a fully-furnished office.

Question 5

What are the advantages of PaaS?

Answer 5

1. Simplifies development: No need to set up servers or frameworks.
2. Speeds up work: Focus on your app, not on maintenance.
3. Scalable: It grows as your app grows.

Question 6

What are the disadvantages of PaaS?

Answer 6

1. Less control: You can’t customize the system fully.
2. Dependency: You rely on the provider’s platform and tools.

Question 7

What is SaaS (Software as a Service)?

Answer 7

SaaS is like using a fully-built and ready-to-use app, similar to renting a car.

Question 8

What are the advantages of SaaS?

Answer 8

1. Easy to use: No installation or updates required.
2. No maintenance: The provider handles everything.
3. Accessible from anywhere: Just need a browser and internet connection.

Question 9

What are the disadvantages of SaaS?

Answer 9

1. Limited control: You can’t customize the software deeply.
2. Ongoing cost: Often subscription-based.