3.1 Computer Networks and Protocols

What is a computer network?

A group of computers and devices connected for communication and resource sharing.

What is a network?

A group of people or devices connected to share data or resources.

What are the main benefits of computer networks?

Fast information sharing, resource sharing, collaboration and productivity, and cost savings.

How do networks improve productivity?

They support real-time teamwork and collaboration.

How do networks reduce costs?

They allow resources such as printers, servers, and software to be shared.

What is a network protocol?

A standard set of rules that determines how data is transmitted, received, and verified across a network.

What is a packet?

A small, formatted unit of data transmitted across a network.

What does TCP/IP stand for?

Transmission Control Protocol/Internet Protocol.

What does TCP/IP do?

It breaks data into packets, routes them across networks, and reassembles them correctly.

What is TCP/IP responsible for?

Providing the foundation for communication across the internet.

What does HTTP do?

It enables web browsing by allowing browsers and web servers to communicate.

What does HTTPS do?

It enables secure communication for web browsing.

What does SMTP do?

It handles outgoing email.

What does VoIP enable?

Voice communication over a network.