下列是一台Cisco路由器的部分路由表,表中的路由信息完全正确的是( )。

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问题 下列是一台Cisco路由器的部分路由表,表中的路由信息完全正确的是(    )。

选项 A、 Gateway of last resort is 202.112.41.217 to network 0.0.0.0
C 212.112.7.0/24 is directly connected,VLAN120
212.112.37.0/30 is subnetted,1 subnets
C 212.112.37.16 is directly connected,VLAN130
167.105.0.0/26 is subnetted,2subnets
S 167.105.125.128 [1/0]via 202.112.7.1
S 167.105.144.192 [1/0] via 202.112.7.1
S*0.0.0.0/0[1/0] via 202.112.41.217
B、Gateway of last resort is 202.112.41.217 to network 0.0.0.0
C 212.112.7.0/24 is directly connected,FastEthernet 2/5
212.112.37.0/30 is subnetted,1 subnets
C 212.112.37.16 is directly connected,POS3/0
167.105.0.0/26 is subnetted,2subnets
S 167.105.125.128 [1/0]via2 02.112.7.1
S 167.105.144.192 [1/0] via 202.112.7.1
S*0.0.0.0/0[1/0] via 202.112.7.1
C、Gateway of last resort is 202.112.41.217 to network 0.0.0.0
C 212.112.7.0/24 is directly connected.FastEthernet 2/5
212.112.37.0/30 is subnetted,1 subnets
C 212.112.37.16 is directly connected,POS3/0
167.105.0.0/26 is subnetted,2 subnets
S 167.105.125.128 [1/0] via 202.112.7.1
S 167.105.144.192 [1/0]via 202.112.7.1
S*0.0.0.0/0[1/0]via 202.112.41.217
D、Gateway of last resort is 202.112.41.217 to net work 0.0.0.0
C 212.112.7.0/24 is directly connected,FastEthernet2/5
212.112.37.0/30 is subnetted,1 subnets
C 212.112.37.16 is directly connected,POS3/0
167.105.0.0/26 is subnetted,2 subnets
S 167.105.125.12S [20/0]via 202.112.7.1
S 167.105.144.192 [20/0]via 202.112.7.1
S*0.0.0.0/0 [20/0]via 202.112.41.217

答案C

解析 选项A第二行“C 212.112.7.0/24.is directly connected,VIANl20”在VLAN120之前缺少端口名称,选项B中via后面的IP地址错误,根据题意“Gateway of last resort is 202.112.41.217 to network 0.0.0.0”知,正确的IP地址应该是202.112.41.217。选项D中,最后一行“s*0.0.0.0/0[20/0]via 202.112.41.217”中[20/0]错误,静态路由的管理距离是1而不是20。
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