单项选择题
Which CLI command displays the VRFs that are operational within each virtual router?（）
A.A B.B C.C D.D
Which message type is used to initiate an RSVP-TE label...
Which message type is used to initiate an RSVP-TE label switched path?（）
Which CLI command disconnects all subscribers on an ATM...
Which CLI command disconnects all subscribers on an ATM PVC?（）
Which CLI command displays the status of a PPP over Eth...
Which CLI command displays the status of a PPP over Ethernet subinterface?（）
