单选

● 一个HTML文件的启始标记为  (41)  。

(41)

  • A.         
  • B.         </li> <li>C.<html>         </li> <li>D.<meta></li> </ul> </div> <div class="source"> 试题出自试卷<a href="/paper/view202103162314613566738432.html" >《2008年下半年《网络管理员》上午试题(标准答案+解析版)》</a> </div> <fieldset class="layui-elem-field layui-field-title"> <legend class=" t-c">参考答案</legend> </fieldset> <div id="answer" data-qid="170708341293584384"> </div> </div> <div class="preview"> <div class="caption">您可能感兴趣的试题</div> <div class="content"> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708393571389440.html"><p> ● Each machine supporting TCP has a TCP transport entity, either a library procedure, a user process, or part of the kernel. In all case, it manages TCP streams and  (71)  to the IP layer. A TCP  (72) accepts user data streams from local process, breaks them into pieces not exceeding 64KB, and sends each piece as a separate IP (73)  . When datagrams containing TCP data arrive at a machine, they are given to the TCP entity, which reconstructs the original byte streams.  The IP layer gives no guarantee that datagrams will be delivered properly, so it is up to TCP to time out and  (74)  them as need be. Datagrams do arrive may well do so in the wrong order, it is also up to TCP to (75) them into messages in the proper sequence.</p><p>(71)</p></a> </dd> </dl> <ul> <li>A. calls   </li> <li>B. interfaces           </li> <li>C. links     </li> <li>D. produces      (72)</li> <li>A. connection </li> <li>B. file     </li> <li>C. entity     </li> <li>D. destination    (73)</li> <li>A. datagram  </li> <li>B. stream    </li> </ul> <div class="button"><a href="/question/20210416170708393571389440.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708391717507072.html"><p>● 网络用户能进行QQ聊天, 但在浏览器地址栏中输入www.ceiaec.org却不能正常访问该页面,此时管理员应检查 (70) 。</p><p>(70)</p></a> </dd> </dl> <ul> <li>A. 网络物理连接是否正常</li> <li>B. DNS 服务器是否正常工作</li> <li>C. 默认网关设置是否正确</li> <li>D. IP 地址设置是否正确</li> </ul> <div class="button"><a href="/question/20210416170708391717507072.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708387787444224.html"><p>● 下列Internet应用中,传输层需要采用UDP 协议的是 (67) 。</p><p>(67)</p></a> </dd> </dl> <ul> <li>A.  IP 电话                 </li> <li>B.  浏览Web页面    </li> <li>C.  telnet           </li> <li>D.  发送电子邮件  </li> </ul> <div class="button"><a href="/question/20210416170708387787444224.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708389486137344.html"><p>● SMTP 使用端口 (68) 传输邮件报文,报文采用 (69) 格式表示。 </p><p>(68)</p></a> </dd> </dl> <ul> <li>A.20           </li> <li>B.21       </li> <li>C.23     </li> <li>D.25      (69)</li> <li>A.ASCII          </li> <li>B.Aduio     </li> <li>C.jpeg     </li> <li>D.image  </li> </ul> <div class="button"><a href="/question/20210416170708389486137344.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708385925173248.html"><p>● 通常使用 (66)作为用户名进行匿名 FTP 访问。</p><p>(66)</p></a> </dd> </dl> <ul> <li>A. guest           </li> <li>B. email地址   </li> <li>C. anonymous        </li> <li>D. 主机id  </li> </ul> <div class="button"><a href="/question/20210416170708385925173248.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708382674587648.html"><p>● 在 Linux 操作系统中,网络管理员可以通过修改 (64) 文件对 Web 服务器端口进行配置。</p><p>(64)</p></a> </dd> </dl> <ul> <li>A. inetd.conf       </li> <li>B. lilo.conf           </li> <li>C. httpd.conf          </li> <li>D. resolv.conf</li> </ul> <div class="button"><a href="/question/20210416170708382674587648.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708384301977600.html"><p>● 在Windows的cmd命令窗口中输入 (65) 命令,可以查看本机路由信息。</p><p>(65)</p></a> </dd> </dl> <ul> <li>A. ipconfig /renew    </li> <li>B. ping  </li> <li>C. netstat –r        </li> <li>D. nslookup</li> </ul> <div class="button"><a href="/question/20210416170708384301977600.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708380892008448.html"><p>● 在Linux操作系统中, (63) 命令可以将文件备份到磁带上。</p><p>(63)</p></a> </dd> </dl> <ul> <li>A. cp            </li> <li>B. tar             </li> <li>C. dir          </li> <li>D. tr</li> </ul> <div class="button"><a href="/question/20210416170708380892008448.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708379138789376.html"><p>● 下面关于防火墙的说法,正确的是(62) 。</p><p>(62)</p></a> </dd> </dl> <ul> <li>A.防火墙一般由软件以及支持该软件运行的硬件系统构</li> <li>B.防火墙只能防止未经授权的信息发送到内网</li> <li>C.防火墙一般能准确地检测出攻击来自哪一台计算机</li> <li>D.防火墙的主要支撑技术是加密技术</li> </ul> <div class="button"><a href="/question/20210416170708379138789376.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> <div class="question"> <dl> <dt><i class="layui-icon layui-icon-list"></i></dt> <dd> <a href="/question/20210416170708377112940544.html"><p>● 下列SNMP 消息中,不属于SNMPv1的是(61) 。</p><p>(61)</p></a> </dd> </dl> <ul> <li>A. GetRequet         </li> <li>B. SetRequest  </li> <li>C. GetBulkRequest       </li> <li>D. Trap</li> </ul> <div class="button"><a href="/question/20210416170708377112940544.html" class="layui-btn layui-btn-radius layui-btn-primary">查看试题详情</a></div> </div> </div> </div> <div class="preview"> <div class="caption">您可能感兴趣的试卷</div> <div class="content"> <div class="paper"> <ul> <li><a target="_blank" href="/paper/202103161854978527334400.html" title="高级经济师考试试题精选练习(1)"><i class="layui-icon layui-icon-read"></i> 高级经济师考试试题精选练习(1)</a></li> <li><a target="_blank" href="/paper/202103161854980427354112.html" title="高级经济师考试模拟练习题之单选题(1)"><i class="layui-icon layui-icon-read"></i> 高级经济师考试模拟练习题之单选题(1)</a></li> <li><a target="_blank" href="/paper/202103161854976631508992.html" title="高级经济师考试试题精选练习(2)"><i class="layui-icon layui-icon-read"></i> 高级经济师考试试题精选练习(2)</a></li> <li><a target="_blank" href="/paper/202103161854974660186112.html" title="高级经济师考试试题精选练习(3)"><i class="layui-icon layui-icon-read"></i> 高级经济师考试试题精选练习(3)</a></li> <li><a target="_blank" 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