帮同学问的一道CCNA题

我要飞 · 发表于 2005-6-14 14:40:58

7。Which of the following statements regarding ISDN are correct? (** all that apply) A. Each ISDN B channel has transmission speeds of up to 64 kbps. B. The ISDN B channel can carry video, voice or data. C. The ISDN B channel transmission rate varies depending on the service used. D. The ISDN D channel transmits control information. E. The ISDN B channels can be configured with different subnets and encapsulation types when dialer profiles are configured. Answer: A, B, D（E也对么）<img src="images/Emotions/70.gif">

丢丢 · 发表于 2005-6-14 14:46:48

稍后由潘老师为您解答：）

sod · 发表于 2005-6-16 10:02:37

thanks

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