阅读以下说明,回答问题1至问题4,将解答填入答题纸对应的解答栏内。【说明】某园区组网方案如图1-1所示,SW1和SW2通过堆叠线缆连接后组成堆叠系统,对于上游和下游设备来说,它们就相当于一台交换机SW-Core,R1、SW3和SW4通过双链路连接到SW-Core,R1连接到ISP的接口是GE0/0/2,该接口的IP地址为58.30.66.54/30。网络规划如表1-1和表1-2内容所示
【问题1】(6分,每空1分)R1的配置如下:<Huawei>( 1 ) Enter system view, return user view with Ctrl+Z.[Huawei]sysname ( 2 )[R1] interface ( 3 )[R1-Eth-Trunk1]undo portswitch[R1-Eth-Trunk1]description TO_SW_Core[R1-Eth-Trunk1]quit[R1]interface GigabitEthernet 0/0/0[R1-GigabitEthernet0/0/1]eth-trunk 1[R1-GigabitEthernet0/0/1]quit [R1]interface GigabitEthernet 0/0/1[R1-GigabitEthernet0/0/2]eth-trunk 1[R1-GigabitEthernet0/0/2]quit[R1]acl 2000[R1-acl-basic-2000]rule permit source any[R1-acl-basic-2000]quit[R1] interface Eth-Trunk 1[R1-Eth-Trunk1]ip address ( 4 )[R1-Eth-Trunk1]quit[R1-GigabitEthernet0/0/2]ip address 58.30.66.54 30[R1-GigabitEthernet0/0/2]nat outbound ( 5 )[R1-GigabitEthernet0/0/2]quit[R1]ip route-static 192.168.20.0 24 192.168.10.2 [R1]ip route-static 192.168.30.0 24 192.168.10.2[R1]ip route-static 192.168.100.0 24 192.168.10.2[R1]telnet server enableInfo: The Telnet server has been enabled.[R1]aaa[R1-aaa] local-user admin privilege level 15 password cipher 123@Huawei.com[R1-aaa]local-user admin service-type telnet terminal[R1-aaa]quit[R1]user-interface vty 0 4[R1-ui-vty0-4]protocol inbound telnet[R1-ui-vty0-4]authentication-mode ( 6 )[R1-ui-vty0-4]quit[R1]user-interface console 0[R1-ui-console0]authentication-mode aaa[R1-ui-console0]quit
……(1)-(6)备选项A.system-view B.eth-trunk1 C.2000D.192.168.10.1 29 E.aaa F.R1
(1)(2)(3)(4)(6)
【问题 2】(4分,每空2分)管理若需要远程登录路由器R1进行配置,则可以使用( 7 );登录时输入的用户名( 8 ),密码是123@Huawei.com.(7)备选项:A.telnet B.ssh C.web浏览器 D.网络管理软件(8)备选项A.telnet B. admin C. privilege D.aaa
【问题 3】(6分,每空2分)在该网络中,为防止非法DHCP服务器分配IP地址,可以在接入交换机上配置( 9 )功能,为了防止交换机之间接错线而导致环路可以配置( 10 )功能,为了防止接入交换机某个接口下面产生内环可以配置( 11 )功能。(9-11)备选项:A.DHCP Snooping B. loopback-detect C.STP(9)(10)(11)
【问题 4】(4分,每空2分)要使该网络中所有设备互联互通,需要在SW-Core和R1上各配置一条缺省路由,其中在SW-Core配置的是ip route-static 0.0.0.0 0.0.0.0 ( 12 );在R1配置的是ip route-static 0.0.0.0 0.0.0.0 ( 13 )。(12)(13)
正确答案及解析
正确答案
解析
【问题 1】答案:(1)A(2)F(3)B (4)D(5)C (6)E【问题 2】答案:(7) A (8)B【问题 3】参考答案:(9)A(10)C(11)B【问题 4】答案:(12)192.168.10.1(13)58.30.66.53
【解析】
【问题 1】解析:R1的配置如下:<Huawei>system-view Enter system view, return user view with Ctrl+Z.[Huawei]sysname R1[R1] interface Eth-Trunk 1[R1-Eth-Trunk1]undo portswitch[R1-Eth-Trunk1]description TO_SW_Core[R1-Eth-Trunk1]quit[R1]interface GigabitEthernet 0/0/0[R1-GigabitEthernet0/0/1]eth-trunk 1[R1-GigabitEthernet0/0/1]quit [R1]interface GigabitEthernet 0/0/1[R1-GigabitEthernet0/0/2]eth-trunk 1[R1-GigabitEthernet0/0/2]quit[R1]acl 2000[R1-acl-basic-2000]rule permit source any[R1-acl-basic-2000]quit[R1] interface Eth-Trunk 1[R1-Eth-Trunk1]ip address 192.168.10.1 29[R1-Eth-Trunk1]quit[R1-GigabitEthernet0/0/2]ip address 58.30.66.54 30[R1-GigabitEthernet0/0/2]nat outbound 2000[R1-GigabitEthernet0/0/2]quit[R1]ip route-static 192.168.20.0 24 192.168.10.2 [R1]ip route-static 192.168.30.0 24 192.168.10.2[R1]ip route-static 192.168.100.0 24 192.168.10.2[R1]ip route-static 0.0.0.0 0.0.0.0 58.30.66.53
……[R1]telnet server enableInfo: The Telnet server has been enabled.[R1]aaa[R1-aaa] local-user admin privilege level 15 password cipher Huawei.com@123[R1-aaa]local-user admin service-type telnet terminal[R1-aaa]quit[R1]user-interface vty 0 4[R1-ui-vty0-4]protocol inbound telnet[R1-ui-vty0-4]authentication-mode aaa[R1-ui-vty0-4]quit[R1]user-interface console 0[R1-ui-console0]authentication-mode aaa[R1-ui-console0]quit[R1]【问题 2】解析:从用户密码是123@Huawei.com,可以确定是admin这个用户,并且系统打开了telnet服务,因此选(7)选A【问题 3】解析:三个基本概念。当交换机开启了 DHCP-Snooping后,会对DHCP报文进行侦听,并可以从接收到的DHCP Request或DHCP Ack报文中提取并记录IP地址和MAC地址信息。另外,DHCP-Snooping允许将某个物理端口设置为信任端口或不信任端口。信任端口可以正常接收并转发DHCP Offer报文,而不信任端口会将接收到的DHCP Offer报文丢弃。这样,可以完成交换机对假冒DHCP Server的屏蔽作用,确保客户端从合法的DHCP Server获取IP地址。Loopback-detection enable命令用来开启端口环回监测功能,以便监测各个端口是否外部环回。【问题 4】解析:内部交换机的默认网关指向路由器的内网接口。路由器的默认网关指向ISP的接口。具体的接口地址要从图表中获得,关键是要知道ip route-static的基本命令格式。在基础视频有详细讲解。
你可能感兴趣的试题
Advancements in ( )have contributed to the growth of the automotive industry through the creation and evolution of self-driving vehicles.
-
- A.Artificial Intelligence
- B.Cloud Computing
- C.Internet of Things
- D.Big Data
- 查看答案
In project human resource management , ( )is not a source of power for the project manager.
-
- A.referent power
- B.expert power
- C.reward power
- D.audit power
- 查看答案
At the project establishment stage , the feasibility study mainly includes techinical feasibility analysis , ( ), operation environment feasibility analysis and other aspects of feasibility analysis.
-
- A.detail feasibility analysis
- B.opportunity analysis
- C.economic feasibility analysis
- D.risk analysis
- 查看答案
( )is a grid that shows the project resources assigned to each work package.
-
- A.Stakeholder engagement assessment matrix
- B.Requirements traceability matrix
- C.Probability and impact matrix
- D.Responsibility assignment matrix
- 查看答案
Xinhua News Agency reported in January 2022,Chian will further promote the developmet of a digital economy during the 14th Five-Year Plan eriod(2021-2025). The plan also emphasized industrial ( )transformation.
-
- A.digital
- B.networking
- C.intelligentize
- D.informatization
- 查看答案