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In this chapter we defined what a protocol is and explored
two models for data communications, the OSI and TCP/IP (DoD) model.
Specific protocols within the TCP/IP protocol stack were identified
and the relevant addressing schemes used by each were explained. The
discussion on addressing also introduced the concept of the subnet
mask and how that can be used to divide a network into many
subnetworks. Finally, we saw an overview of how TCP/IP protocols and
reference tables cooperate to deliver a packet across an
internetwork. |
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