Protocols and Hardware
The Network Access layer is the most mysterious and least uniform of TCP/IP's layers. The Network Access layer manages all the services and functions necessary to prepare the data for the physical network. These responsibilities include
Interfacing with the computer's network adapter.
Coordinating the data transmission with the conventions of the appropriate access method. You'll learn more about access methods later in this hour.
Formatting the data into a unit called a frame and converting that frame into the stream of electric or analog pulses that passes across the transmission medium.
Checking for errors in incoming frames.
Adding error-checking information to outgoing frames so that the receiving computer can check the ...
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