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.a

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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.an,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.ca
    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

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
    因此选择C选项。
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