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.c

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问题 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(    )。

选项 A、Router(config)#ip dhcp pool zw246
Router(dhcp-config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10
Router(dhcp-config)#network 176.115.246.0 255.255.255.0
Router(dhcp-config)#default-router 176.115.246.1
Router(dhcp-config)#domain-name tj.edu.cn
Router(dhcp-config)#dns-server address 176.115.129.26
Router(dhcp-config)#lease 0 6 30
B、Router(config)#ip dhcp excluded-address 176.115.246.2-10
Router(config)#ip dhcp pool zw246
Router(dhcp-config)#network 176.115.246.0 255.255.255.0
Router(dhcp-config)#default-router 176.115.246.1
Router(dhcp-config)#domain-name tj.edu.cn
Router(dhcp-config)#dns-server address 176.115.129.26
Router(dhcp-config)#lease 0 6 30
C、Router(config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10
Router(config)#ip dhcp pool zw246
Router(dhcp-config)#network 176.115.246.0 255.255.255.0
Router(dhcp-config)#default-router 176.115.246.1
Router(dhcp-config)#domain-name tj.edu.cn
Router(dhcp-config)#dns-server address 176.115.129.26
Router(dhcp-config)#lease 0 6 30
D、Router(config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10
Router(config)#ip dhcp pool zw246
Router(dhcp-config)#network 176.115.246.0 255.255.255.0
Router(dhcp-config)#default-router 176.115.246.1
Router(dhcp-config)#domain-name tj.edu.cn
Router(dhcp-config)#dns-server address 176.115.129.26
Router(dhcp-config)#lease 30 6 0

答案C

解析 Cisco路由器DHCP地址池的配置:
    步骤一:首先排除不用于动态分配的地址(config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10
    步骤二:配置一个名为zw246的DHCP地址池(config)#ip dhcp pool zw246
    步骤三:配置IP地址池的子网地址和子网掩码(dhcp-config)#network 176.115.246.0 255.255.255.0
    步骤四:配置缺省网关(dhcp-config)#default-router 176.115.246.1
    步骤五:配置IP地址池的域名(dhcp-config)#domain-name tj.edu.cn
    步骤六:配置域名服务器的IP地址 (dhcp-config)#dns-setver address 176.115.129.26
    步骤七:配置租借期为6小时30分钟(dhcp-config)#lease 0 6 30,格式为:lease 天数 小时数 分钟数
    因此C选项正确。
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