<Tr> <Td_colspan="2"> A standard 8P8C (often called RJ45) connector used most commonly on category 5 cable, one of the types of cabling used in Ethernet networks </Td> </Tr> <Tr> <Th> Standard </Th> <Td> IEEE 802.3 (1983 onwards) </Td> </Tr> <Tr> <Th> Physical media </Th> <Td> Coaxial cable, twisted pair, optical fiber </Td> </Tr> <Tr> <Th> Network topology </Th> <Td> Point - to - point, star, bus </Td> </Tr>

List the functions performed by the physical layer of 802.3 standards