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📁 参加全国网络工程师考试的参考资料
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lang=EN-US><br>
</span>　　<span lang=EN-US>(54)A</span>．<span lang=EN-US>named</span><span
class=GramE>　　　　</span><span lang=EN-US>B</span>．<span lang=EN-US>address</span>　　<span
lang=EN-US>C</span>．<span class=SpellE><span lang=EN-US>nat</span></span><span
class=GramE>　　　　　</span> <span lang=EN-US>D</span>．<span class=SpellE><span
lang=EN-US>resolvcr</span></span><span lang=EN-US><br>
</span>　　<span lang=EN-US>(55)A</span>．解析库及参数<span lang=EN-US> B</span>．程序及参数<span
lang=EN-US> C</span>．协议及顺序　　<span lang=EN-US>D</span>．服务及顺序<span lang=EN-US> <o:p></o:p></span></span></p>

<p><span style='font-size:10.5pt;color:black'>　　<span lang=EN-US>●</span>以下<span
lang=EN-US>Windows</span>命令中，可以用于验证端系统地址的是<span lang=EN-US>__(56)__</span>；可以用于识别分组传送路径的是<span
lang=EN-US>__(57)__</span>；如果要终止一个<span lang=EN-US>ping</span>会话，正确的操作是<span
lang=EN-US>__(58)__</span>。以下应用中，对网络带宽性能影响最大的应用是<span lang=EN-US>__(59)__</span>。<span
lang=EN-US>OSPF</span>和<span lang=EN-US>RIP</span>都是<span class=SpellE><span
lang=EN-US>Intemet</span></span>中的路由协议，与<span lang=EN-US>RIP</span>相比，<span
lang=EN-US>OSPF</span>有许多优点，但<span lang=EN-US>__(60)__</span>不是<span
lang=EN-US>OSPF</span>的优点。<span lang=EN-US><br>
</span>　　<span lang=EN-US>(56)A</span>．<span lang=EN-US>ping</span><span
class=GramE>　　　　</span><span lang=EN-US> B</span>．<span class=SpellE><span
lang=EN-US>arp</span></span><span lang=EN-US>-a</span>　　<span class=GramE>　</span><span
lang=EN-US>C</span>．<span class=SpellE><span lang=EN-US>tracert</span></span>　　<span
class=GramE>　</span><span lang=EN-US> D</span>．<span lang=EN-US>telnet<br>
</span>　　<span lang=EN-US>(57)A</span>．<span lang=EN-US>ping</span><span
class=GramE>　　　　</span><span lang=EN-US> B</span>．<span class=SpellE><span
lang=EN-US>traceroute</span></span><span lang=EN-US> C</span>．<span
class=SpellE><span lang=EN-US>tracert</span></span>　　<span class=GramE>　</span><span
lang=EN-US> D</span>．<span class=SpellE><span lang=EN-US>routeprint</span></span><span
lang=EN-US><br>
</span>　　<span lang=EN-US>(58)A</span>．<span class=SpellE><span lang=EN-US>Ctrl+Break</span></span>　<span
lang=EN-US> B</span>．<span lang=EN-US>Ctrl+Alt+6 C</span>．<span class=SpellE><span
lang=EN-US>Ctrl+Alt+Del</span></span>　<span lang=EN-US>D</span>．<span
class=SpellE><span lang=EN-US>Ctrl+Shift+Del</span></span><span lang=EN-US><br>
</span>　　<span lang=EN-US>(59)A</span>．<span lang=EN-US>Email</span>客户端软件<span
class=GramE>　　　　　　</span><span lang=EN-US>B</span>．<span lang=EN-US>Internet</span>浏览器软件<span
lang=EN-US><br>
</span><span class=GramE>　　　　</span><span lang=EN-US>C</span>．<span lang=EN-US>IP</span>电视组播<span
class=GramE>　　　　　　　　</span><span lang=EN-US> D</span>．日历软件<span lang=EN-US><br>
</span>　　<span lang=EN-US>(60)A</span>．没有跳步数的限制<span class=GramE>　　　　　</span><span
lang=EN-US> B</span>．更快的收敛性<span lang=EN-US><br>
</span><span class=GramE>　　　　</span><span lang=EN-US>C</span>．扩大了网络规模<span
class=GramE>　　　　　　</span><span lang=EN-US> D</span>．更低的路由开销<span lang=EN-US> <o:p></o:p></span></span></p>

<p><span style='font-size:10.5pt;color:black'>　　<span lang=EN-US>●IPv4</span>地址可以划分为<span
lang=EN-US>{</span>网络号，主机号<span lang=EN-US>}</span>两部分。在下面的地址标记中，用<span
lang=EN-US>0</span>表示所有比特为<span lang=EN-US>0</span>，用<span lang=EN-US>-1</span>表示所有比特为<span
lang=EN-US>1</span>。以下选项中，<span lang=EN-US>__(61)__</span>不能作为目标地址，<span
lang=EN-US>__(62)__</span>不能作为源地址，<span lang=EN-US>__(63)__</span>只能用于本机测试，<span
lang=EN-US>__(64)__</span>只能用于内部网络。<span lang=EN-US>IPv6</span>使用了更大的地址空间，每个地址占有<span
lang=EN-US>128</span>比特，为方便网络管理人员阅读和管理，采用<span lang=EN-US>__(65)__</span>进制数加冒号的表示方法。</span><span
lang=EN-US style='mso-bidi-font-size:10.5pt;color:white'>(</span><span
style='mso-bidi-font-size:10.5pt;color:white'>此括号内不是试题部分。欢迎访问软件考试网<span
lang=EN-US>www.hbsoft.net)</span></span><span lang=EN-US style='font-size:10.5pt;
color:black'><br>
</span><span style='font-size:10.5pt;color:black'>　　<span lang=EN-US>(61)A</span>．<span
lang=EN-US>{0</span>，<span lang=EN-US>0}</span>　<span lang=EN-US> B</span>．<span
lang=EN-US>{127</span>，主机号<span lang=EN-US>}</span>　<span lang=EN-US>C</span>．<span
lang=EN-US>{10</span>，主机号<span lang=EN-US>}</span>　<span lang=EN-US>D</span>．<span
lang=EN-US>{</span>网络号，<span lang=EN-US>-1}<br>
</span>　　<span lang=EN-US>(62)A</span>．<span lang=EN-US>{0</span>，<span
lang=EN-US>0}</span>　<span lang=EN-US> B</span>．<span lang=EN-US>(127</span>，主机号<span
lang=EN-US>}</span>　<span lang=EN-US>C</span>．<span lang=EN-US>{10</span>，主机号<span
lang=EN-US>}</span>　<span lang=EN-US>D</span>．<span lang=EN-US>{</span>网络号，<span
lang=EN-US>-1}<br>
</span>　　<span lang=EN-US>(63)A</span>．<span lang=EN-US>{0</span>，<span
lang=EN-US>0}</span>　<span lang=EN-US> B</span>．<span lang=EN-US>{127</span>，主机号<span
lang=EN-US>}</span>　<span lang=EN-US>C</span>．<span lang=EN-US>{10</span>，主机号<span
lang=EN-US>}</span>　<span lang=EN-US>D</span>．<span lang=EN-US>{192</span>，<span
lang=EN-US>-1}<br>
</span>　　<span lang=EN-US>(64)A</span>．<span lang=EN-US>{0</span>，<span
lang=EN-US>0}</span>　<span lang=EN-US> B</span>．<span lang=EN-US>{128</span>，主机号<span
lang=EN-US>}</span>　<span lang=EN-US>C</span>．<span lang=EN-US>{10</span>，主机号<span
lang=EN-US>}</span>　<span lang=EN-US>D</span>．<span lang=EN-US>{168</span>，<span
lang=EN-US>-1}<br>
</span>　　<span lang=EN-US>(65)A</span>．十六　　<span lang=EN-US> D</span>．十<span
class=GramE>　　　　　　</span><span lang=EN-US> C</span>．八<span class=GramE>　　　　　　</span><span
lang=EN-US>D</span>．二<span lang=EN-US> <o:p></o:p></span></span></p>

<p><span style='font-size:10.5pt;color:black'>　　<span lang=EN-US>● For each
blank, choose the best answer from the four choices and write down on the
answer sheet.<br>
</span>　　<span lang=EN-US>__(66)__ is a protocol that a host uses to inform a
router when it joins Or leaves an Internet multicast group.<br>
</span>　　<span lang=EN-US>__(67)__ is an error detection code that most data
communication networks use.<br>
</span>　　<span lang=EN-US>__(68)__ is an interior gateway protocol that uses a
distance vector algorithm to propagate routing information.<br>
</span>　　<span lang=EN-US>__(69)__ is a transfer mode in which all types of
information are organized into fixed form cells on an asynchronous or
non-periodic basis over a range of media.<br>
</span>　　<span lang=EN-US>_<span class=GramE>_(</span>70)__ is an identifier of
a web page.<br>
</span>　　<span lang=EN-US>(66)A</span>．<span lang=EN-US>ICMP</span>　　<span
class=GramE>　</span><span lang=EN-US> B</span>．<span lang=EN-US>SMTP</span>　　<span
class=GramE>　</span><span lang=EN-US>C</span>．<span lang=EN-US>IGMP</span><span
class=GramE>　　　　　　　</span><span lang=EN-US>D</span>．<span lang=EN-US>ARP<br>
</span>　　<span lang=EN-US>(67)A</span>．<span lang=EN-US>4B/SB</span>　　<span
class=GramE>　</span><span lang=EN-US>B</span>．<span lang=EN-US>CRC</span>　　<span
class=GramE>　</span><span lang=EN-US> C</span>．<span lang=EN-US>Manchester Code</span>　<span
lang=EN-US> D</span>．<span lang=EN-US>Huffman Code<br>
</span>　　<span lang=EN-US>(68)A</span>．<span lang=EN-US>OSPF</span>　　<span
class=GramE>　</span><span lang=EN-US> B</span>．<span lang=EN-US>RIP</span>　　<span
class=GramE>　</span><span lang=EN-US> C</span>．<span lang=EN-US>RARP</span><span
class=GramE>　　　　　　　</span><span lang=EN-US>D</span>．<span lang=EN-US>BGP<br>
</span>　　<span lang=EN-US>(69)A</span>．<span lang=EN-US>ISDN</span>　　<span
class=GramE>　</span><span lang=EN-US> B</span>．<span lang=EN-US>X.25</span>　　<span
class=GramE>　</span><span lang=EN-US>C</span>．<span lang=EN-US>Frame Relay</span>　　<span
class=GramE>　</span><span lang=EN-US> D</span>．<span lang=EN-US>ATM<br>
</span>　　<span lang=EN-US>(70)A</span>．<span lang=EN-US>HTTP</span>　　<span
class=GramE>　</span><span lang=EN-US> B</span>．<span lang=EN-US>URL</span>　　<span
class=GramE>　</span><span lang=EN-US> C</span>．<span lang=EN-US>HTML</span><span
class=GramE>　　　　　　　</span><span lang=EN-US>D</span>．<span lang=EN-US>TAG <o:p></o:p></span></span></p>

<p><span style='font-size:10.5pt;color:black'>　　<span lang=EN-US>●In the
following essay, each blank has four choices. Choose the best answer and write
down on the answer sheet.<br>
</span>　　<span lang=EN-US>Spread spectrum simply means that data is sent in
small pieces over a number of the _<span class=GramE>_(</span>71)__ frequencies
available for use at any time in the specified range. Devices using _<span
class=GramE>_(</span>72)__ spread spectrum (DSSS) communicate by __(73)__ each
byte of data into several parts and sending them concurrently on different
__(74)__ . DSSS uses a lot of the available __(75)__ , about 22 megahertz
(MHz).<br>
</span>　　<span lang=EN-US>(71)A</span>．<span lang=EN-US>continuous</span>　　<span
lang=EN-US> B</span>．<span lang=EN-US>high</span><span class=GramE>　　　　</span><span
lang=EN-US> C</span>．<span lang=EN-US>low</span><span class=GramE>　　　　　</span><span
lang=EN-US> D</span>．<span lang=EN-US>discrete<br>
</span>　　<span lang=EN-US>(72)A</span>．<span lang=EN-US>direct-sequence</span><span
class=GramE>　　　　　　　　</span><span lang=EN-US>B</span>．<span lang=EN-US>discrete-sequence<br>
</span><span class=GramE>　　　　</span><span lang=EN-US>C</span>．<span lang=EN-US>duplicate-sequence</span><span
class=GramE>　　　　　　</span><span lang=EN-US> D</span>．<span lang=EN-US>dedicate-sequence<br>
</span>　　<span lang=EN-US>(73)A</span>．<span lang=EN-US>splitting</span>　　<span
class=GramE>　</span><span lang=EN-US>B</span>．<span lang=EN-US>combining</span>　　<span
lang=EN-US>C</span>．<span lang=EN-US>packing</span>　　<span class=GramE>　</span><span
lang=EN-US> D</span>．<span lang=EN-US>compacting<br>
</span>　　<span lang=EN-US>(74)A</span>．<span lang=EN-US>bits</span><span
class=GramE>　　　　　</span><span lang=EN-US> B</span>．<span lang=EN-US>frequencies</span>　<span
lang=EN-US>C</span>．<span lang=EN-US>packets</span>　　<span class=GramE>　</span><span
lang=EN-US> D</span>．<span lang=EN-US>messages<br>
</span>　　<span lang=EN-US>(75)A</span>．<span lang=EN-US>rate</span><span
class=GramE>　　　　　</span><span lang=EN-US> B</span>．<span lang=EN-US>velocity</span>　　<span
lang=EN-US> C</span>．<span lang=EN-US>bandwidth</span>　　<span lang=EN-US> D</span>．<span
class=GramE><span lang=EN-US>period</span></span><span lang=EN-US> <o:p></o:p></span></span></p>

<p class=MsoNormal><span lang=EN-US style='mso-bidi-font-size:10.5pt;
font-family:宋体;mso-bidi-font-family:宋体;color:white;mso-font-kerning:0pt'>(</span><span
style='mso-bidi-font-size:10.5pt;font-family:宋体;mso-bidi-font-family:宋体;
color:white;mso-font-kerning:0pt'>此括号内不是试题部分。欢迎访问软件考试网<span lang=EN-US>www.hbsoft.net)</span></span></p>
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