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單項選擇題

A customer's application requires 30 virtual paths on a four port OC3 card.
Which command allows this functionality?（）

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

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多項選擇題

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

單項選擇題

Which command generates a BERT test pattern of all zeros on T1 number 1 for ten minutes?（）

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