This is a draft cheat sheet. It is a work in progress and is not finished yet.
Types of Networks
LAN |
Local Area Network |
WAN |
Wide Area Network |
PAN |
Personal Area Network |
Types of Connections
Point to Point |
Server Client |
Path of a Packet
Application |
HTTP |
Transport |
UDP & TCP |
Network |
IP |
Link |
Ethernet or Wifi |
Physical |
Coaxial Ethernet Cable |
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Network Topologies
Bus |
A single cable, the backbone functions as a shared communication medium that devices attach or tap into with an interface connector. |
Ring |
All messages travel through a ring in the same direction (either "clockwise" or "counterclockwise"). A failure in any cable or device breaks the loop and can take down the entire network. |
Star |
Features a central connection point called a "hub node" that may be a network hub, switch or router. |
Tree |
A Bus/Star hybrid in which only hub devices connect directly to the tree bus, and each hub functions as the root of a tree of devices. |
Mesh |
Messages can take any of several possible paths from source to destination. Some WANs, most notably the Internet, employ mesh routing. |
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