Your network contains a DHCP server named DHCP1. You have a DHCP reservation for a computer named Computer1.You add a DNS server option to the reservation.You need to ensure that Computer1 immediately receives the new option.What should you do?()A. Run ipconfig.exe /renew.B. Run ipconfig.exe /registerdns.C. On DHCP1, recreate the reservation.D. On DHCP1, delete the active lease for the reservation.
Your network contains a DHCP server named DHCP1. You have a DHCP reservation for a computer named Computer1.You add a DNS server option to the reservation.You need to ensure that Computer1 immediately receives the new option.What should you do?()
A. Run ipconfig.exe /renew.
B. Run ipconfig.exe /registerdns.
C. On DHCP1, recreate the reservation.
D. On DHCP1, delete the active lease for the reservation.
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在Cisco路由器上建立一个名为zw246的DHCP地址池,地址池的IP地址是176.115.246.0/24,其中不用于动态分配的地址有176.115.246.2~176.115.246.10,缺省网关为176.115.246.1,域名为tj.edu.cn,域名服务器地址为176.115.129.26,地址租用时间设定为6小时30分钟。下列DHCP地址池的配置,正确的是A)Router (config)#ip dhcp pool zw246Router (dhcp-config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10Router (dhcp-config)#network 176.115.246.0 255.255.255.0Router (dhcp-config)#default-router 176.115.246.1Router (dhcp-config)#domain-name tj.edu.cnRouter (dhcp-config)#dns-server address 176.115.129.26Router (dhcp-config)#lease 0 6 30B)Router (config)#ip dhcp excluded-address 176.115.246.2-10Router (config)#ip dhcp pool zw246Router (dhcp-config)#network 176.115.246.0 255.255.255.0Router (dhcp-config)#default-router 176.115.246.1Router (dhcp-config)#domain-name tj.edu.cnRouter (dhcp-config)#dns-server address 176.115.129.26Router (dhcp-config)#lease 0 6 30C)Router (config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10Router (config)#ip dhcp pool zw246Router (dhcp-config)#network 176.115.246.0 255.255.255.0Router (dhcp-config)#default-router 176.115.246.1Router (dhcp-config)#domain-name tj.edu.cnRouter (dhcp-config)#dns-server address 176.115.129.26Router (dhcp-config)#lease 0 6 30D)Router (config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10Router (config)#ip dhcp pool zw246Router (dhcp-config)#network 176.115.246.0 255.255.255.0Router (dhcp-config)#default-router 176.115.246.1Router (dhcp-config)#domain-name tj.edu.cnRouter (dhcp-config)#dns-server address 176.115.129.26Router (dhcp-config)#lease 30 6 0
在路由器上建立一个名为test的DHCP地址池,并为其分配IP地址202.112.7.0、24,子网地址中的202.112.7.2~202.112.7.10作为静态地址分配,正确的DHCP配置是A.Router(config)#ip dhcp pool test Router(config)#ip dhcp excluded-address 202.112.7.2-10 Router(dhcp-config)#network 202.112.7.0 255.255.255.0B.Router(config)#ip dhcp excluded-address 202.112.7.2-10 Router(config)#ip dhcp pool test Router(dhcp-config)#network 202.112.7.0/24C.Router(config)#ip dhcp excluded-address 202.112.7.2-10 Router(config)#ip dhcp pool test Router(dhcp-config)#network 202.112.7.0 0.0.0.255D.Router(config)#ip dhcp excluded-address 202.112.7.2-10 Router(config)#ip dhcp pool test Router(dhcp-config)#network 202.112.7.0 255.255.255.0
下面是某路由器的 DHCP 配置信息ip dhcp exeluded-address 182.105.246.2 182.105.246.10!ip dhcp pool 246network 182.105.246.0 255.255.255.0default-router 182.105.246.1domain-name pku.edu.cndms-server 182.105.129.26 182.105.129.27 222.112.7.13lease 0.5根据上述信息, DHCP 客户端不可能从服务器获得的 IP 地址是A)182.105.246.5B)182.105.246.11C)182.105.246.192D)182.105.246.254
下面是某路由器的DHCP配置信息: ip dhcp excluded-address 182.105.246.2 182.105.246.10 ! ip dhcP Pool 246 network 182.105.246.0 255.255.255.0 default-router 182.105.246.1 domain-name pku.edu.cn dns-server 182.105.246.26 182.105.246.27 222.1A.182.105.246.5B.182.105.246.11C.182.105.246.192D.182.105.246.254
在路由器上建立一个名为test的DHCP地址池,并为其分配IP地址202.112.7.0/24,子网地址中的202.112.7.2~202.112.7.10作为静态地址分配,正确的DHCP配置是______。A.Router(config) #ip dhcp pool test Router(config) #ip dhcp excluded-address 202.112.7.2-10 Router(dhcp-config) #network 202.112.7.0-255.255.255.0B.Router(config) #ip dhcp excluded-address 202.112.7.2-202.112.7.10 Router(config) #ip dhcp pool test Router(dhcp-config) #network 202.112.7.0/24C.Router(config) #ip dhcp excludeaddress 202.112.7.2-202.112.7.10 Router(config) #ip dhcp pool test Router(dhcp-config) #network 202.112.7.0-0.0.0.255D.Router(config) #ip dhcp excluded-address 202.112.7.2-202.112.7.10 Router(config) #ip dhcp pool test Router(dhcp-config) #network 202.112.7.0-255.255.255.0
根据网络拓扑和要求说明,完成(或解释)路由器R1 的配置:R1#configR1(config)# interface FastEthernet 0/1R1(config-if)#ip address (1) (2)R1(config-if)#no shutdownR1(config-if)#exitR1(config)#ip dhcp pool vlan 3R1(dhcp-config)#network 192.168.3.0 255.255.255.0R1(dhcp-config)#default-router 192.168.3.254 255.255.255.0 ; (3)R1(dhcp-config)#dns-server 192.168.2.1 ; (4)R1(dhcp-config)#lease 0 8 0 ; (5)R1(dhcp-config)#exitR1(config)#ip dhcp pool vlan 4R1(dhcp-config)#network (6) (7)R1(dhcp-config)#default-router 192.168.4.254 255.255.255.0R1(dhcp-config)#dns-server 192.168.2.1R1(dhcp-config)#lease 0 8 0R1(dhcp-config)#exitR1(config)#ip dhcp excluded-address (8) (9)R1(config)#ip dhcp excluded-address 192.168.3.254//排除掉不能分配的IP 地址R1(config)#ip dhcp excluded-address 192.168.4.254R1(config)# (10) 192.168.3.0 255.255.255.0 FastEthernet0/1//在以太网接口和VLAN3 间建立一条静态路由
在某台Cisco路由器中定义一个名为test的DHCP地址池(192.168.3.0/26),并保留192.168.3.62/29的IP地址。下列正确的配置语句是(29)。A.Router(config)#ip dhcp pooltest Router(dhcp-config)#network 192.168.3.00.0.0.63 Router(dhcp-config)#ip dhcp excluded-address192.168.3.62B.Router(config)#ip dhcp poo1 test Router(dhcp-config)#network 192.168.3.0255.255.255.192 Router(dhcp-config)#ip dhcp excluded-address 192.168.3.62255.255.255.248C.Router(config)#ip dhcp poo1 test Router(dhcp-config)#network 192.168.3.0/26 Router(dhcp-config)#ip dhcp excluded-address 192.168.3.62/29D.Router(config)#ip dhcp excluded-address 192.168.3.56192.168.3.62 Router(config)#ip dhcp pool test Router(dhcp-config)#network 192.168.3.0/26
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】如图3-1所示,某公司规划了两个网段,网段10.1.1.0/24为固定办公终端,网段10.1.2.0/24提供访客临时接入网络。PC-1使用固定IP地址:10.1.1.100/24,其他终端使用DHCP方式分配IP地址。【问题1】(4分)所有设备配置保持默认配置情况下,图3-1拓扑中,有(1)个冲突域,有(2)个广播域(按照50个PC终端计算)。【问题2】(8分)按照公司网络设计要求,需对Switch完成基本配置,请将下面的配置代码补充完整。(3)[HUAWEI] sysname(4)[DHCP-Server] dhcp enable[DHCP-Server] vlan (5)10 to 11 //创建VLAN10和VLAN11[DHCP-Server](6) gigabitethernet 0/0/1[DHCP-Server-GigabitEthernet0/0/1]port link-type (7)[DHCP-Server-GigabitEthernet0/0/1]port default vlan (8)[DHCP-Server-GigabitEthernet0/0/1]quit[DHCP-Server]interface vlanif 10[DHCP-Server-Vlanif10] ip address (9)(10)[DHCP-Server-Vlanif10]quit[DHCP-Server]gigabitethernet 0/0/2 接口配置略......(3)~(10)备选答案A.24 B.DHCP-Server C.10.1.1.1 D.system-viewE.interface F.batch G.access H.10【问题3】(6分)按照公司网络设计要求,完成DHCP服务器配置,固定办公设备IP地址租期为30天,访客的IP地址租期为1天,请将下面的配置代码补充完整。......[DHCP-Server]interface vlanif 10[DHCP-Server-Vlanif10] (11) select interface //使能接口采用接口地址池的DHCP服务器功能[DHCP-Server-Vlanif10]dhcp server lease day (12)[DHCP-Server-Vlanif10]dhcp server static-bind ip-address (13) mac-address (14) //为PC-1分配固定的IP地址[DHCP-Server-Vlanif10]quit[DHCP-Server]interface vlanif 11[DHCP-Server-Vlanif11]dhcp select interface[DHCP-Server-Vlanif11]quit[DHCP-Server](11)~(14)备选答案A.10.1.1.100 B.286e-d444-b692 C.dhcp D.30【问题4】(2分)在问题3的配置代码中,没有关于VLAN11地址租期的配置代码,下面的描述中正确的是(15)。(15)备选答案A.配置错误,须手动添加相关配置代码,否则VLAN11的客户端无法获取IP地址B.配置错误,须手动添加相关配置代码,否则DHCP服务器无法正常工作C.配置正确,无需手动添加配置代码,VLAN11的地址租期将与VLAN10相同D.配置正确,无需手动添加配置代码,默认地址租期为1天试题分析:交换机是二层设备,每一个端口在一个冲突域,所有端口在同一个广播域,因此交换机不能隔离广播域,但是却可以隔离冲突域。因此可知冲突域数量为52个,广播域为2个(一个VLAN就是一个广播域)。System-view 用户视图进入到系统视图Sysname DHCP-Server 给设备命名为DHCP-ServerVLAN batch 10 to 11 批量创建VLAN 10/11Interface gigabitethernet 0/0/1 进入接口视图Port link-type access 接口配置为access类型Port default vlan 10 将接口划分至VLAN 10Ip address 10.1.1.1 24 配置接口IP地址为10.1.1.1/24DHCP select interface 使能接口采用DHCP服务动态获取IP地址的功能Dhcp server lease day 30 设置ip地址租约为30天Dhcp server static-bind ip-address 10.1.1.100 mac-address 286e-d444-b692 为PC-1分配固定的IP地址。DHCP服务租约信息是可选配置,可手动配置租约期限,同时也可以采用默认租约1天。
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】如图3-1所示,某公司规划了两个网段,网段10.1.1.0/24为固定办公终端,网段10.1.2.0/24提供访客临时接入网络。PC-1使用固定IP地址:10.1.1.100/24,其他终端使用DHCP方式分配IP地址。【问题1】(4分)所有设备配置保持默认配置情况下,图3-1拓扑中,有(1)个冲突域,有(2)个广播域(按照50个PC终端计算)。【问题2】(8分)按照公司网络设计要求,需对Switch完成基本配置,请将下面的配置代码补充完整。(3)[HUAWEI] sysname(4)[DHCP-Server] dhcp enable[DHCP-Server] vlan (5)10 to 11 //创建VLAN10和VLAN11[DHCP-Server](6) gigabitethernet 0/0/1[DHCP-Server-GigabitEthernet0/0/1]port link-type (7)[DHCP-Server-GigabitEthernet0/0/1]port default vlan (8)[DHCP-Server-GigabitEthernet0/0/1]quit[DHCP-Server]interface vlanif 10[DHCP-Server-Vlanif10] ip address (9) (10)[DHCP-Server-Vlanif10]quit[DHCP-Server]gigabitethernet 0/0/2 接口配置略......(3)~(10)备选答案A.24 B.DHCP-Server C.10.1.1.1 D.system-viewE.interface F.batch G.access H.10【问题3】(6分)按照公司网络设计要求,完成DHCP服务器配置,固定办公设备IP地址租期为30天,访客的IP地址租期为1天,请将下面的配置代码补充完整。......[DHCP-Server]interface vlanif 10[DHCP-Server-Vlanif10] (11) select interface //使能接口采用接口地址池的DHCP服务器功能[DHCP-Server-Vlanif10]dhcp server lease day (12)[DHCP-Server-Vlanif10]dhcp server static-bind ip-address (13) mac-address (14) //为PC-1分配固定的IP地址[DHCP-Server-Vlanif10]quit[DHCP-Server]interface vlanif 11[DHCP-Server-Vlanif11]dhcp select interface[DHCP-Server-Vlanif11]quit[DHCP-Server](11)~(14)备选答案A.10.1.1.100 B.286e-d444-b692 C.dhcp D.30【问题4】(2分)在问题3的配置代码中,没有关于VLAN11地址租期的配置代码,下面的描述中正确的是(15)。(15)备选答案A.配置错误,须手动添加相关配置代码,否则VLAN11的客户端无法获取IP地址B.配置错误,须手动添加相关配置代码,否则DHCP服务器无法正常工作C.配置正确,无需手动添加配置代码,VLAN11的地址租期将与VLAN10相同D.配置正确,无需手动添加配置代码,默认地址租期为1天