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GLOSSARYsubnet masktarTCP/IPTCP porttelnettrailer stringszoneA binary value used to divide IP networksinto smaller sub-networks or subnets.This mask is used to helpdetermine whether IP packets need to beforwarded on to other subnets.Command for archiving data onto a permanentstorage medium. Used in Unixnetworks.Suite of protocols that act as the baseprotocol for the Internet.A logical connection point in the softwareof a TCP host or device. When twoIP devices talk, they establish a socketwhich consists of a source and destinationTCP port number on both ends.Command and protocol to establish aterminal connection between two hostson an IP network.Strings that follow print jobs; used tocontrol the printer and set printingoptions.A pre-defined group of AppleTalk stationswhich helps divide up larger networks.75