A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this stateme

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问题 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?

选项 A、This is a 10Mb/s switch port.
B、        This is a 100Mbs 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.

答案C

解析 考点:考查冲突域的概念。在半双工网络中才存在冲突域。综上所述选C。
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