将Cisco路由器的配置保存在NVRAM中，正确的命令是-考呗网

计算机四级

单选题将Cisco路由器的配置保存在NVRAM中，正确的命令是

A．Router #write flash
B．Router #write network
C．Router #write memory
D．Router #write erase

从NVRAM加载配置信息命令为Configure memory
将路由器配置保存在NVRAM中命令为Write memory

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1Cisco路由器第3模块第1端口通过E1标准的DDN专线与一台远程路由器相连，端口的IP地址为195.112.41.81/30，远程路由器端口封装PPP协议。下列路由器的端口配置，正确的是

A．Router (config)#interface s3/1
Router (config-if)#bandwidth 2048
Router (config-if)#ip address 195.112.41.81 255.255.255.252
Router (config-if)#encapsulation ppp
Router (config-if)#exit
B．Router (config)#interface a3/1
Router (config-if)#bandwidth 2000
Router (config-if)#ip address 195.112.41.81 255.255.255.252
Router (config-if)#encapsulation ppp
Router (config-if)#exit
C．Router (config)#interface s3/1
Router (config-if)#bandwidth 2
Router (config-if)#ip address 195.112.41.81 255.255.255.252
Router (config-if)#encapsulation ppp
Router (config-if)#exit
D．Router (config)#interface s3/1
Router (config-if)#bandwidth 2048
Router (config-if)#ip address 195.112.41.81 255.255.255.252
Router (config-if)#encapsulation hdlc
Router (config-if)#exit

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2拒绝转发所有IP地址进与出方向的、端口号为1434的UDP和端口号为4444的TCP数据包，下列正确的access-list配置是

A．Router (config)#access-list 30 deny udp any any eq 1434
Router (config)#access-list 30 deny tcp any any eq 4444
Router (config)#access-list 30 permit ip any any
B．Router (config)#access-list 130 deny udp any any eq 1434
Router (config)#access-list 130 deny tcp any any eq 4444
Router (config)#access-list 130 permit ip any any
C．Router (config)#access-list 110 deny any any udp eq 1434
Router (config)#access-list 110 deny any any tcp eq 4444
Router (config)#access-list 110 permit ip any any
D．Router (config)#access-list 150 deny udp ep 1434 any any
Router (config)#access-list 150 deny tcp ep 4444 any any
Router (config)#access-list 150 permit ip any any

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3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 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

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