单选题在Cisco路由器上建立一个名为zw100的DHCP地址池，地址池的IP地址是176.115.100.0/24，其中不用于动态分配的地址有176.115.100.2-176.115.100.10，缺省网关为176.115.100.1，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 zw100Router(dhcp-config)#ip dhcp excluded-address 176.115.100.2 176.115.100.10Router(dhcp-config)#network 176.115.100.0 255.255.255.0Router(dhcp-config)#default-router 176.115.100.1Router(dhcp-config)#domain-name tj.edu.cnRouter(dhcp-config)#dns-server address 176.115.129.26Router(dhcp-config)#lease 0 6 30
B、 Router(config)#ip dhcp excluded-address 176.115.100.2 176.115.100.10Router(config)#ip dhcp pool zw100Router(dhcp-config)#network 176.115.100.0 255.255.255.0Router(dhcp-config)#default-router 176.115.100.1Router(dhcp-config)#domain-name tj.edu.cnRouter(dhcp-config)#dns-server address 176.115.129.26Router(dhcp-config)#lease 0 6 30
C、 Router(config)#ip dhcp excluded-address 176.115.100.2-10Router(config)#ip dhcp pool zw100Router(dhcp-config)#network 176.115.100.0 255.255.255.0Router(dhcp-config)#default-router 176.115.100.1Router(dhcp-config)#domain-name tj.edu.cnRouter(dhcp-config)#dns-server address 176.115.129.26Router(dhcp-config)#lease 0 6 30
D、 Router(config)#ip dhcp excluded-address 176.115.100.2 176.115.100.10Router(config)#ip dhcp pool zw100Router(dhcp-config)#network 176.115.100.0 255.255.255.0Router(dhcp-config)#default-router 176.115.100.1Router(dhcp-config)#domain-name tj.edu.cnRouter(dhcp-config)#dns-server address 176.115.129.26Router(dhcp-config)#lease 30 6 0

【正确答案】 B

【答案解析】