多项选择题

Which two services protect the ERX Edge Router from unauthorized CLI logins?（）

A.A
B.B
C.C
D.D
E.E

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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

单项选择题

Which message type is used to initiate an RSVP-TE label switched path?（）

A.A
B.B
C.C
D.D

单项选择题

Which CLI command disconnects all subscribers on an ATM PVC?（）

A.A
B.B
C.C
D.D