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A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port()。
A.
This is a 10 Mb/s switch port
B.
This is a 100 Mb/s switch port
C.
This is an Ethernet port operating at half duplex
D.
This is an Ethernet port operating at full duplex
E.
This is a port on a network interface card in a PC