📄 hcne题目二 cisco、华为、juniper及网络技术.htm
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<TABLE WIDTH='98%' cellpadding='0' cellspacing='0' border='0' height='400'><TR><td background='' valign='top' ><TABLE WIDTH='100%' height='24' background='img/subindex_bar_long_ed2.gif' cellspacing='0' cellpadding='0'><TR><TD align='center'><FONT style='font-size: 12pt' >HCNE题目二</FONT></TD></TR></TABLE><br><font color='#5555a5'>第1页</font><BR><table width='100%' height='250'><tr><td valign='top'> <P> </P>
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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">选择题：</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">每题</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">分，共</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">100</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">分</SPAN></FONT><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">)<BR>1. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">以下属于物理层的设备是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><SPAN><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">A</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>中继器</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>以太网交换机</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>桥</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">网关</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman"> <?xml:namespace prefix = o /><o:p></o:p></FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">2. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">在以太网中，是根据</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">___</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">地址来区分不同的设备的。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><SPAN><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">B</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. LLC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>地址</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. MAC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>地址</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. IP</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>地址</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. IPX</FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">地址</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">3. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">以下为传输层协议的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">)<SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">CD</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman"><FONT size=2>A. IP<BR>B. ICMP<BR>C. UDP<BR>D. SPX<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">4. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">以下对</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">MAC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">地址描述正确的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">) <SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">BC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">由</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">32</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">位</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">进制数组成</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">由</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">48</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">位</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">2</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">进制数组成</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">前</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">6</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">位</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">16</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">进制由</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">IEEE</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">负责分配</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">后</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">6</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">位</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">16</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">进制由</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">IEEE</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">负责分配</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">5. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">以下属于数据链路层功能的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">) <SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">BCD</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>定义数据传输速率</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>定义物理地址</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>描述网络拓扑结构</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">流控制</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">6. IEEE802.3u</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">标准是指</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><SPAN><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">B</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>以太网</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>快速以太网</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>令牌环网</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. FDDI</FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">网</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">8. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">V.35</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">和</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">V.24</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">规程中，控制信号</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">RTS</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">表示</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman"><SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">D</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>数据终端准备好；</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>数据准备好；</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>数据载体检测；</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>请求发送；</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>E. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">清除发送。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">9. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">路由器作为网络互连设备，必须具备以下哪些特点。</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">) <SPAN> </SPAN><SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">ABE</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>至少支持两个网络接口</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>协议至少要实现到网络层</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>至少支持两种以上的子网协议</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>至少具备一个备份口</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>E. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>具有存储、转发和寻径功能</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>F. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>一组路由协议</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>G. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">必须有较高的协议处理能力</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">10. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">路由器的作用有</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">)</FONT><A name=function_of_router></A><FONT face="Times New Roman"> <SPAN> </SPAN><SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">ABDG</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>异种网络互连</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>子网间的速率适配</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>连接局域网内两台以上的计算机</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">隔离网络，防止网络风暴，指定访问规则</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">防火墙</SPAN></FONT><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">)<BR>E. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">子网协议转换</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>F. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>加快网络报文的传递速度</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>G. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">路由</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">寻径</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">)</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">：路由表建立、刷新、查找</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>H. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">报文的分片与重组</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">11. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">调用上一条历史命令的快捷键是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman"><SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">A</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman"><FONT size=2>A. CTRL-P<BR>B. CTRL-O<BR>C. ALT-P<BR>D. ALT-O<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">12. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">交换机工作在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">OSI</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">七层的哪一层？</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><SPAN><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">B</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>一层</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>二层</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>三层</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">三层以上</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">13. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">以下对</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">CSMA/CD</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">描述正确的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">) <SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">AC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>在数据发送前对网络是否空闲进行检测</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>在数据发送时对网络是否空闲进行检测</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>在数据发送时对发送数据进行冲突检测</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">发生碰撞后</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">MAC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">地址小的主机拥有发送优先权</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">14. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">以下对</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">STORE AND FORWARD</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">描述正确的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">) <SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">CE</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>收到数据后不进行任何处理，立即发送</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">收到数据帧头后检测到目标</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">MAC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">地址，立即发送</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">收到整个数据后进行</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">CRC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">校验，确认数据正确性后再发送</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>发送延时较小</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>E. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">发送延时较大</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">15. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">以下对交换机工作方式描述正确的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">) <SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">ABD</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>可以使用半双工方式工作</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>可以使用全双工方式工作</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>使用全双工方式工作时要进行回路和冲突检测</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用半双工方式工作时要进行回路和冲突检测</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">16. VLAN</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">的主要作用有</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">) <SPAN> </SPAN><SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">ABCD</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>保证网络安全</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>抑制广播风暴</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>简化网络管理</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">提高网络设计灵活性</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">17. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">在交换机中用户权限分为几个级别</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman"><SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">C</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. 1<BR>B. </FONT></SPAN><?xml:namespace prefix = st1 /><st1:chmetcnv tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="2" unitname="C"><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman" size=2>2<BR></FONT></SPAN></st1:chmetcnv><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman"><FONT size=2>C. 3<BR>D. 4<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">18. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">在路由器的配置过程中查询以</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">S</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">开头所有命令的方法是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><SPAN><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">B</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>直接使用？</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. S?<BR>C. S ?<BR>D. DIR S</FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">＊</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">19. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">第一次配置路由器时可以使用的方法为</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman"><SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">A</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">CONSOLE</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">口本地配置</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">CONSOLE</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">口远程配置</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">AUX</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">口远程配置</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">TELNET</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">远程配置</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">20. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">在何种状态下可以为路由器改名</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><SPAN><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">C</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>普通模式</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>超级模式</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>全局模式</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">接口模式</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">24. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">当路由器接收的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">IP</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">报文的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">TTL</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">值等于</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">1</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">时，采取的策略是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman"><SPAN> </SPAN><SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">A</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>丢掉该分组</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>将该分组分片</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>转发该分组</FONT></SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>D. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">以上答案均不对</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">25. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">在</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">NetWare</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">网络中，客户需要访问某个类型的服务器时，首先要发送一个</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">__</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">广播报文来寻找服务器（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">C</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman"><FONT size=2>A. Rip<BR>B. Sap<BR>C. Gns<BR>D. Arp<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">26. IPX</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">地址网络地址有</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">__</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">个字节</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><SPAN><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">C</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. 10 <BR>B. </FONT></SPAN><st1:chmetcnv tcsc="0" numbertype="1" negative="False" hasspace="False" sourcevalue="8" unitname="C"><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman" size=2>8<BR></FONT></SPAN></st1:chmetcnv><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman"><FONT size=2>C. 4<BR>D. 6<o:p></o:p></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">27. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">对于帧中继描述正确的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">多</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">) <SPAN> </SPAN></FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">AC</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><FONT size=2><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用具有本地意义的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">DLCI</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">描述</SPAN></FONT><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">PVC<BR>B. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用具有全局意义的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">DLCI</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">描述</SPAN></FONT><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">PVC<BR>C. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用具有本地意义的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">DLCI</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">描述</SPAN></FONT><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">SVC<BR>D. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">使用具有全局意义的</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">DLCI</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">描述</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">SVC<o:p></o:p></FONT></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 12pt"><FONT size=2><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">28. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">对于</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">INVERSE ARP</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">的描述正确的是</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><SPAN><FONT face="Times New Roman"> </FONT></SPAN></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">（</SPAN><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><FONT face="Times New Roman">C</FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体">）</SPAN></FONT><SPAN lang=EN-US style="FONT-SIZE: 9pt; COLOR: black"><BR><FONT face="Times New Roman" size=2>A. </FONT></SPAN><SPAN style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 宋体"><FONT size=2>通过广播方⌨️ 快捷键说明
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