< Communication Networks
- Access Point
- A layer 1 device that interconnects a wireless network with a wired network.
- Bridge
- A layer 2 device that interconnects two or more existing networks.
- Firewall
- A multi-layer device that makes decisions on what data to forward on to its destination, and what data to block from its destination.
- Hub
- A layer 1 device that physically connects two or more network devices together. Similar to a switch, but less efficient. Every device receives and sends to and from every other device connected to the hub.
- Network
- A collection of two or more devices which are interconnected using common protocols to exchange data.
- Node
- Any device connected to a network.
- Protocol
- Any agreed upon standard used for communication.
- Request for Comments (RFC)
- A specification of an internet standard or protocol.
- Router
- A layer 3 device that decides how to forward a packet based on its desired destination.
- Switch
- A layer 2 device that logically connects two or more devices in a network for more isolated communication. Some devices sold as switches are also capab
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