Cybersecurity Essentials

CHAPTER 15Understanding Network Connectivity Devices

All intelligent devices attached to a network must have a network interface adapter capable of physically connecting the device to the network transmission media. These network connectivity devices provide physical connection schemes (such as plugs and jacks) as well as electrical compatibility between the device and the signals traveling across the transmission media (cables or airwaves). The network typically contains other connectivity devices that connect different portions of the network together and perform different network management functions. These connectivity devices are usually switches or routers. In large or complex networks, you might also find devices, called bridges, ...