超星 - 1.20 解决常见网络问题 - 测验

单选题

用户的家用电脑工作正常。但是，用户无法访问 Internet。互联网连接是通过有线电视公司提供的。用户无法确定问题的原因。用户应该联系谁以获得进一步的帮助？ The home computer of a user is working properly. However, the user cannot access the Internet. The Internet connection is provided through a cable company. The user cannot identify the cause of the problem. Who should the user contact for further help?

A. 有线电视公司的帮助热线 the help line of the cable company
B. 操作系统供应商 the operating system vendor
C. 计算机制造商的帮助热线 the help line of the computer manufacturer
D. 计算机供应商的支持网站 the support web site of the computer vendor

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单选题

一位客户致电有线电视公司报告 Internet 连接不稳定。在尝试了几次配置更改后，技术人员决定向客户发送一个新的电缆调制解调器进行尝试。这代表什么故障排除技术？ A customer called the cable company to report that the Internet connection is unstable. After trying several configuration changes, the technician decided to send the customer a new cable modem to try. What troubleshooting technique does this represent?

A. 自下而上 bottom-up
B. 分而治之 divide-and-conquer
C. 替代 substitution
D. 自上而下 top-down

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单选题

小型办公室使用无线路由器连接到电缆调制解调器以访问互联网。网络管理员接到电话，说一台办公室电脑无法访问外部网站。网络管理员执行的第一个故障排除步骤是从办公室计算机 ping 无线路由器。这代表哪种故障排除技术？ A small office uses a wireless router to connect to a cable modem for internet access. The network administrator receives a call that one office computer cannot access external websites. The first troubleshooting step that the network administrator performs is to ping the wireless router from the office computer. Which troubleshooting technique does this represent?

A. 分而治之 divide-and-conquer
B. 替代 substitution
C. 自下而上 bottom-up
D. 自上而下 top-down

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单选题

网络管理员可以成功 ping 通 www.cisco.com 上的服务器，但无法 ping 通位于其他城市 ISP 的公司 Web 服务器。哪个工具或命令可以帮助识别丢失或延迟数据包的特定路由器？ A network administrator can successfully ping the server at www.cisco.com, but cannot ping the company web server located at an ISP in another city. Which tool or command would help identify the specific router where the packet was lost or delayed?

A. traceroute
B. netstat
C. ipconfig
D. telnet

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单选题

技术人员将使用哪个命令来显示主机上的网络连接？ Which command would a technician use to display network connections on a host computer?

A. ipconfig
B. tracert
C. nslookup
D. netstat

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单选题

一旦在故障排除过程中解决了问题，下一步应该采取哪个步骤？ Which step should be taken next once a problem is resolved during a troubleshooting process?

A. 运行远程访问软件。 Run remote access software.
B. 升级问题。 Escalate the problem.
C. 更新文档。 Update the documentation.
D. 查阅常见问题解答。 Consult an FAQ.

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多选题

网络技术人员输入命令 ipconfig /release 后再输入 ipconfig /renew 以确保更新工作站上的 DHCP IP 配置。但是，工作站没有收到网络的有效 IP 配置。网络上可能存在哪两个问题？（选择两项。） A network technician enters the command ipconfig /release followed by ipconfig /renew in order to ensure that the DHCP IP configuration on a workstation is updated. However, the workstation does not receive a valid IP configuration for the network. Which two problems may exist on the network? (Choose two.)

A. 没有连接到 DHCP 服务器。 There is no network connectivity to the DHCP server.
B. 必须发出 ipconfig /all 命令才能恢复所有 IP 配置。 The ipconfig /all command must be issued to restore all IP configurations.
C. DHCP 服务器存在问题。 There is a DHCP server issue.
DHCP 租用时间配置错误。 The DHCP lease time is misconfigured.
E. 网关路由器地址需要更新. The gateway router address needs to be updated.

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多选题

在对内部 Web 服务器崩溃进行故障排除后，应记录哪三项？（选择三个。） Which three items should be documented after troubleshooting an internal web server crash? (Choose three.)

A. 崩溃时 LAN 上所有网络设备的配置 the configuration of all networking devices on the LAN at the time of the crash
B. 为确定问题原因而执行的步骤 steps that were performed to identify the cause of the problem
C. 崩溃时 LAN 上所有主机的配置 the configuration of all hosts on the LAN at the time of the crash
D. 执行失败的步骤找出问题的原因 steps that were performed that failed to identify the cause of the problem
E. 问题发生的时间 when the problem occurred
F. 与用户的对话 the dialogue with the user

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多选题

用户致电服务台报告工作站问题。哪三个问题会产生对故障排除最有用的信息？（选择三个。） A user calls the help desk to report a workstation problem. Which three questions would produce the most helpful information for troubleshooting? (Choose three.)

A. 如果你收到错误消息，那是什么？ If you received an error message, what was it?
B. 你是否在工作站上使用了网络监控工具？ Have you used a network monitoring tool on your workstation?
C. 你对工作站进行了哪些更改？ What changes have you made to your workstation?
D. 你的工作站上运行的是什么操作系统版本？ What operating system version is running on your workstation?
E. 你是否执行了备份最近？ Have you performed a backup recently?
F. 你的工作站有保修吗？ Do you have the warranty for your workstation?

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多选题

物理层网络连接问题的两个常见原因是什么？（选择两项。） What are two common causes of a physical layer network connectivity problem? (Choose two.)

A. 以太网电缆插入了错误的端口 an Ethernet cable plugged into a wrong port
B. 显示器未插入 a monitor unplugged
C. 未分配的 IP 地址 an unassigned IP address
D. 默认网关不正确 an incorrect default gateway
E. 以太网电缆有问题 a faulty Ethernet cable

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