TK 75 一道问题
<P>请问一下TK这题:<BR>Part of the job as a network administrator is being able to make a distinction between routed protocols and routing protocols. <BR>Which of the following statements is true regarding them? (Choose all that apply) <BR>A. A routing protocol is assigned to an interface and determines the method of packet delivery. <BR>B. A routed protocol is assigned to an interface and determines the method of packet delivery. <BR>C. A routing protocol determines the path of a packet through a network. <BR>D. A routed protocol determines the path of a packet through a network. <BR>E. A routing protocol operates at the transport layer of the OSI model. <BR>F. A routed protocol updates the routing table of a router. </P><P>这题是什么意思,</P><P> A routed protocol 和 A routing protocol 如何解<BR> 谢谢了<BR></P> <P>a routed protocol 被动路由协议：ip ipx </P><P> a routing protocol主动路由协议：静态，rip igrp eigrp ospf isis</P><P>主动路由协议：决定数据包以什么样的路径经过网络</P><P>被动路由协议：ip被标记在端口上，决定以什么方式转发数据包</P> <P>a routed protocol 是可路由协议，ed表示不关心选路过程，能到就行，它<FONT color=#0909f7>指出数据包在通过网络被转发、路由时的方式方法</FONT>，比如IP，IPX，Appletalk；</P><P>a routing protocol是路由协议，ing表示正在<FONT color=#3809f7>选路</FONT>中，是学习路由并将路由放到路由表中进行选择的协议，比如RIP，EIGRP，OSPF等。</P><P>A、B选B，可路由协议是指定接口并决定包传递的方式。</P><P>C、D选C，路由协议用于决定包通过网络时的路径。（为之选择最佳路线）</P><P>E、F都错了，路由协议在第3层的网络层（选路），可路由协议在第4层的传输层（传输方式IP/IPX）,路由协议才需要更新路由表。</P><P> </P><P> </P><p>［此帖子已被 andersen 在 2005-8-16 14:09:21 编辑过］ SQ
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