What is the role played by physical layer?

 Posted by Kmandapalli on 1/15/2014 | Category: Networking Interview questions | Views: 2353 | Points: 40

Physical layer co-ordinates the functions required to transmit a bit stream over a physical medium.
1.Physical characteristics of interfaces and media.
2.Representation of bits.
3.data rate
4.Synchronization of bits.
5.Line configuration.
6.Physical topology
7.Transmission mode.

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