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chapter 7 ab
vocabulary terms
Question | Answer |
---|---|
x.25 | an analog packet switching technology |
x.25 | provides flow control.data reliability over long distances by verifying transmission at every node |
tunneling | the way i which higher-layer data is sent over virtual private networks by layer 2 protocols |
synchronous optical network | a high bandwith WAN signaling technique that specifies framing and multiplexing techniques at the physical layer of the OSI model |
virtual private network | a logically constructed WAN that uses existing public transmission systrems |
VPN | allows an organization to carve out a private WAN thru the Internet,keeps data secure and serves only its offices |
upstream | data traffic that flows from a customers site to a carriers facility |
terminal adapter | a device used to convert digital signals into analog signals .also known as ISDN modems |