下列是一台第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 下列是一台第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、0 162.105.153.0/24 [1 10/2] via 162.105.254.8,00:23:00,Vlan2
O Ell62.105.144.0/25 [110/30]via 162.105.253.249,00:23:00,Vlan253
C 162.105.239.0/25[I/0]via 202.112.41.6
C 162.105.125.128/26[I/0]via 202.112.7.1
S 162.105.157.0/24 is directly connected.Vlan 157
S 162.105.156.0/24 is directly connected,Vlan 30
B、0 162.105.153.0/24[1 10/2]via 162.105.254.8,00:23:00,Vlan 2
O E 1 162.105.144.0/25[1 10/30]via 162.105.253.249,00:23:00,Vlan 253
C 162.105.157.0/24 is directly connected,Vlan 157
C 162.105.156.0/24 is directly connected,Vlan 30
S 162.105.239.0/25[I/0]via 202.1 12.41.6
S 162.105.125.128/26[I/0]via 202.112.7.1
C、0 162.105.153.0/24[1 10/2]via 162.105.254.8,00:23:00,Vlan 2
O E1 162.105.144.0/25[1 10/30]via 162.105.253.249,00:23:00,Vlan 253
C 162.105.157.0/24 is directly connected,Fast Ethernet 3/8
C 162.105.156.0/24 is directly connected,POS 3/0
S 162.105.239.0/25[I/0]via 202.1 12.41.6
S 162.105.125.128/26[I/0]via 202.112.7.1
D、O 162.105.153.0/24[100/2]via 162.105.254.8,00:23:00,Vlan 2
O E1 162.105.144.0/25[100/30]via 162.105.253.249,00:23:00,Vlan 253
C 162.105.157.0/24 Is directly connected,Vlan 157
C 162.105.156.0/24 is directly connected,Vlan 30
S 162.105.239.0/25[I/0]via 202.112.41.6
S 162.105.125.128/26[I/0]via 202.112.7.1

答案B

解析 s代表静态路由,c代表直接连接。选项A最后四句错误。选项C第四行,对于POS3/0端口,“162.105.156.0/24”处应该是路由的端口地址,而不是网络地址。选项D中0和0 E1代表OSPF协议,管理距离应该是110,而不是100。
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