Cloud Computing Fundamentals

Questions and Answers

What is cloud computing defined as?

Cloud computing is a virtualization-based technology that allows us to create, configure, and customize applications via an internet connection.

Which types of cloud services are mentioned in the content?

IaaS

PaaS

SaaS

All of the above (correct)

What is IaaS (Infrastructure as a Service)?

It is a computing infrastructure managed over the internet.

What is PaaS (Platform as a Service)?

PaaS cloud computing platform is created for the programmer to develop, test, run, and manage applications. Signup and view all the answers

Define SaaS (Software as a Service).

SaaS is a software in which applications are hosted by a cloud service provider, and users can access them over the internet with a web browser. Signup and view all the answers

What is the primary characteristic of a Metropolitan Area Network (MAN)?

It connects multiple LANs within a metropolitan area. Signup and view all the answers

What is an example of a Personal Area Network (PAN)?

Bluetooth Signup and view all the answers

What is the main difference between Client-Server and Peer-to-Peer networks?

The architecture and communication model. Signup and view all the answers

What is the purpose of an Intranet?

To provide a private network accessible only to an organization's members. Signup and view all the answers

What is a characteristic of a Wide Area Network (WAN)?

It connects multiple LANs and MANs across large geographical areas. Signup and view all the answers

What is an example of a Local Area Network (LAN)?

Ethernet Signup and view all the answers

What is a Hybrid Network a combination of?

Client-Server and Peer-to-Peer Signup and view all the answers

What is the primary purpose of the Internet?

To connect millions of private, public, academic, business, and government networks. Signup and view all the answers

Study Notes

What is Cloud Computing?

Cloud computing is a virtualization-based technology that enables the creation, configuration, and customization of applications via an internet connection.
It can provide services over public and private networks, including WAN, LAN, or VPN.

Definition of Cloud Computing

Refers to the manipulation, configuration, and access of hardware and software resources remotely.
Offers online data storage, infrastructure, and application services.

Types of Cloud Services

Infrastructure as a Service (IaaS)

A computing infrastructure managed over the internet.
Provides a managed computing infrastructure.

Platform as a Service (PaaS)

A cloud computing platform created for programmers to develop, test, run, and manage applications.
Enables developers to create and deploy applications without managing the underlying infrastructure.

Software as a Service (SaaS)

Also known as "on-demand software".
A software hosted by a cloud service provider, accessible via an internet connection and web browser.
Users can access and use applications without managing the underlying infrastructure.

Network Types by Scale

Personal Area Network (PAN): connects devices like smartphones, tablets, and laptops within an individual's workspace, with a range of a few meters, using technologies like Bluetooth and Infrared.
Local Area Network (LAN): connects computers within a limited area, such as a school, office, or home, with a range of a building or small campus, using technologies like Ethernet and Wi-Fi.
Metropolitan Area Network (MAN): connects multiple LANs within a metropolitan area, with a range of a city or large campus, using technologies like city-wide Wi-Fi and cable TV networks.
Wide Area Network (WAN): connects multiple LANs and MANs across large geographical areas, with a range of a country or across continents, using technologies like the Internet.

Network Types by Architecture

Client-Server Network: a centralized architecture where a server provides resources and services to client machines, used in applications like web services and email servers.
Peer-to-Peer Network (P2P): a decentralized architecture where all devices (peers) share resources and communicate directly, used in applications like file sharing and blockchain networks.
Hybrid Network: a combination of client-server and P2P architectures, used in enterprise networks.

Network Types by Usage

Intranet: a private network accessible only to an organization's members, used in internal corporate networks.
Extranet: a private network that allows access to partners, vendors, and suppliers, used in supply chain management systems.
Internet: a global network connecting millions of private, public, academic, business, and government networks, used in the World Wide Web.

Network Types by Transmission Technology

Wired Networks: use physical cables (e.g., Ethernet cables, fiber optics) for transmission, providing reliable and high-speed data transfer.
Wireless Networks: use radio waves and microwaves for transmission, providing mobile and flexible connectivity in technologies like Wi-Fi and cellular networks.