单选题Which of the following LAN technologies is considered fast Ethernet and uses two pairs of cabling,one pair for sending and the other pair for receiving?（）A 100Base-T4B 100Base-TXC 100Base-XD 100Base-FX
题目
单选题
Which of the following LAN technologies is considered fast Ethernet and uses two pairs of cabling,one pair for sending and the other pair for receiving?（）
A
100Base-T4
B
100Base-TX
C
100Base-X
D
100Base-FX