DTE的时钟由CSU/DSU决定还是由远端设备决定?

快乐孤儿

<P>QUESTION NO: 14<BR>You have a router that’s connected to a Frame Relay WAN link using a serial DTE<BR>interface. What determines the interface clock rate?<BR>A. It is determined by the CSU/DSU.<BR>B. It is determined by the far end device.<BR>C. It is specified in the clock rate command.<BR>D. It is determined by the Layer 1 bit stream timing.</P><P>A还是B呢?</P>

快乐孤儿

呵呵.网上看人讨论TK的错误答案,好几个人都说选B,我也动摇了,不好意思<IMG src="http://www.spoto.com.cn/bbs/images/Emotions/12.gif">