单选题A user connecting a laptop to a wall jack is prompted for user credentials before being grantedaccess to the network. Which of the following is MOST likely implemented on the switch?（）AMAC filteringBPoECIP filteringD802.1X
单选题
A user connecting a laptop to a wall jack is prompted for user credentials before being grantedaccess to the network. Which of the following is MOST likely implemented on the switch?（）
A
MAC filtering
B
PoE
C
IP filtering
D
802.1X
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