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Data Transmission
Term | Definition |
---|---|
WAN | Wide Area Network |
LAN | Local Area Network |
Simplex | Data can only travel in one direction |
Duplex | Data can travel in both directions at the same time |
Half-Duplex | Data can travel in both directions but NOT at the same time |
Bit Rates | the number of bits that can be transferred in a given period of time. |
Parity Check | Will either be odd parity or even parity |
Check Sums | Check sums are similar to PC but they add extra bits to the data calculated from the data. |
Echoes | Echoes are the most reliable method of error checking but causes a lot of network traffic. |
Circuit Switching | Sets up an independent route before a single packet is sent |
Packet Switching | Packets of data take independent routes through the network |
Protocol | A set of rules which govern communication over a specific transmission medium. |
Packet | A chunk of binary data which is used to send information across a network. It will contain the message to be sent as well as additional data on how the packet was formed, should be read, where it came from and who it is going to. |
Serial | One bit at a time. |
Parallel | All bits at once. |