Discussion
A _______ is the physical path over which a message travels.
Answer: B
Correct answer: Medium
The transmission medium is the physical path a signal travels along - twisted pair, coaxial cable, optical fibre, or the free space used by radio. It is one of the five components of a data communication system, alongside the message, the sender, the receiver and the protocol. A route or path is the sequence of devices a message passes through, which is a logical rather than a physical notion.
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