name 3 physical transmission network
Answers
Answer:
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Answer:
Physical transmission media used in communications include twisted-pair cable, coaxial cable, and fiber-optic cable. These cables typically are used within or underground between buildings. Ethernet and token ring LANs often use physical transmission media.
Explanation:
1)Coaxial Cable
This type was popular for several early networks.
Today, coaxial cable is still used for television connections.
The cable is consisted a single copper wire and covered by at least three layers including insulting material, woven metal, and plastic coating.
It is the big and thick cable; therefore, it is appropriate for a long distance as well as resist to interferences.
However, coaxial cable is not fast for transmitting data as other media because it has only one single copper wire.
2)Twisted-pair Cable
This type is more popular among modern network because it is faster as well as easier to settle than coaxial cable.
The insulated copper wires will be twisted in pairs and coated by plastics.
Twisted-pair cable is commonly used for a LAN transmission medium and usually used for telephone transmission.
3)Fiber-optic Cable
This type of cable is consisted of glass fibers in the layers of glass cladding and a protective outer jacket.
It is able to carry voice, video and data transmissions for a long distance.
Because of its capacity and reliability, this type of transmission medium is popular high-speed long-distance transmission.
Fiber-optic cable can be the alternative transmission for MANs and Wans, but it is too expensive for a small LAN.