Section 1. Building a Simple Network

Exploring the Functions of Networking

A network is a collection of devices and end systems.

Networks consist of computers, servers, and network devices, such as switches and routers, that can communicate with each other.

Common Physical Components of a Network

Figure 1-1 shows the four major categories of physical components on a network:

  • Personal computers (PCs): Send and receive data and are the endpoints of the network.
  • Interconnections: Are the components that provide a means for data to travel across the network. This includes network interface cards (NIC), network media, and connectors.
  • Switches: Provide network access for the PCs.
  • Routers: Interconnect networks.

Figure 1-1 Network Components

Networking ...

Get CCENT Quick Reference Sheets now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.