Computer Networking
What is Cladding?

None of these
Coxial Cable
A typical optical fiber consists of a very narrow
Cables with shield

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Computer Networking
The physical layer, in reference to the OSI model, defines

the virtual circuit interface to packet-switched service
the interface between the X.25 network and packet mode device
None of these
data link procedures that provide for the exchange of data via frames that can be sent and received
All of these

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