下列是一台Cisco三层交换机的部分路由表,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三层交换机的部分路由表,表中的路由信息完全正确的是

选项 A、Gateway oflast resort iS 162.105.1.145 to network 0.0.0.0
O    222.29.2.0/24[110/3]via]62.105.1.145,00:13:43,Vlanl
O    222.29.32.0/24[110/3]via 162.105.1.145,00:13:43,Vlanl
O*   E2  0.0.0.0/0[110/1]via 202.112.41.6,00:15:10,vlanl
C    222.1 05.1 57.0/24 is directly connected,Vlanl 57
C    222.105.156.0/24 is directly connected.Vlan30
S    222.105.239.0/25 [1/01 via 202.112.41.6
S    222.105.125.128/26[1/01 via 202.112.7.1
B、Gateway oflast resort is 162.105.1.145 to network 0.0.0.0
O    222.29.2.0/24[1 10/31 via  62.105.1.145,00:l 3:43,Vlanl
O    222.29.32.0/24[1 10/3]via 162.105.1.145,00:13:43,Vlanl
O*E2 0.0.0.0/0[110/11 via 162.105.1.145,00:15:10,Vlanl
C    162.105.157.0/24 is directly connected,Vlanl57
C    162.105.156.0/24 is directly connected.Vlan30
S    162.105.239.0/25[1/0] via vlanl57
S    162.105.125.128/26[1/0] via vlanl
C、Gateway oflast resort is 162.105.1.145 to network 0.0.0.0
O    222.29.2.0/24『115/31 via 162.105.1.145,00:13:43,Vlanl
O    222.29.32.0/24 fl 15/3]via 162.105.1.145,00:13:43,Vlanl
O*E2 0.0.0.0/0[115/11 via 162.105.1.145,00:15:10,Vlan 1
C    162.105.1 57.0/24 is directly connected,GigbitEthemet0/1
C    1 62.1 05.1 56.0/24 is directly connected,GigbitEthemet0/2
S    162.105.239.0/25 [1/01 via 202.112.41.6
S    162.105.125.128/26 fI/01 via 202.112.7.1
D、Gateway oflast resort is 162.105.1.145 to network 0.0.0.0
O    222.29.2.0/24[1 10/31 via 162.105.1.145,00:13:43,Vlanl
O    222.29-32.0/24[110/31 via 162.105.1.145,00:13:43,Vlanl
O*E2 0.0.0.0/0[110/11 via 162.105.1.145,00:15:10,Vlanl
C    162.105.157.0/24 is directly connected.Vlanl57
C    162.105.156.0/24 is directly connected.Vlan30
S    162.105.239.0/25 [1/01 via 02.1 12.41.6
S    162.105.125.128/26[1/01 via 202.1 12.7.1

答案D

解析 在选项A中,在前两条路由中VLANl的地址是162.105.1.145,而第三条路由中,VLANl的地址是202.112.41.6。在选项B中最后两条静态路由S 162.105.239.0/25[1/0]via vlan 157;S 162.105.125.128/26[1/0]via vlanl中不能是vlan157和vlan1,应该是vlan157和vlan1的IP地址,所以选项B错误。在选项C中,两条直连路由C 162.105.157.0/24 is directly connected,GigbitEthemet0/1;C 162.105.156.0/24 is directly connected,GigbitEthemet0/2中,不应该是交换机的电端口,而应该是虚拟端口。所以选项C错误,而选项D正确。
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