多项选择题
Which two features protect the ERX Edge Router from denial-of-service attacks?（）
A.A B.B C.C D.D
A customers application requires 30 virtual paths on a ...
单项选择题
A customer's application requires 30 virtual paths on a four port OC3 card. Which command allows this functionality?（）
An ATM PVC is configured as atm pvc 1 0 101 aal5snap 25...
An ATM PVC is configured as atm pvc 1 0 101 aal5snap 256 128 100 . Which three statements describe the traffic management characteristics of this interface?（）
A.A B.B C.C D.D E.E
Which command generates a BERT test pattern of all zero...
Which command generates a BERT test pattern of all zeros on T1 number 1 for ten minutes?（）
