2. 计算机
  3. Refer to the exhibit． Which statement describes DLCI 17?

Refer to the exhibit． Which statement describes DLCI 17?

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问题 Refer to the exhibit． Which statement describes DLCI 17?
选项 A、        DLCI 17 describes the ISDN circuit between R2 and R3．
B、        DLCI 17 describes a PVC on R2． It cannot be used on R3 or R1．
C、        DLCI 17 is the Layer 2 address used by R2 to describe a PVC to R3．
D、        DLCI 17 describes the dial-up circuit from R2 and R3 to the service provider．
答案C
解析 DLCI号是一个二层地址，和mac类似
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