单选题End users are failing to log in to the network. Which command is used on the ERX Edge Router to validate communications with the RADIUS server?（）Atest ppp aaaBtest aaa pppCtest radius userDtest user radius
单选题
End users are failing to log in to the network. Which command is used on the ERX Edge Router to validate communications with the RADIUS server?（）
A
test ppp aaa
B
test aaa ppp
C
test radius user
D
test user radius
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