下列是一台三层交换机的部分路由表信息,表中的路由信息完全正确的是( )。

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问题 下列是一台三层交换机的部分路由表信息,表中的路由信息完全正确的是(    )。

选项 A、C  169.28.155.0/24 is directly connected.FastEthernet2/15
O  E1 169.28.87.0/24[110/21]via 162.105.254.24,2d16h.Vlan2
202.38.97.0/30 is subnetted.1 subnets
C  202.38.97.196 is directly connected.PO$3/0
O  169.28.70.0/24 [110/2]via 162.105.254.5,2d16h,Vlan2
O  169.28.117.0/24 [110/2] via 162.105.254.15,2d16h,Vlan2
C  169.28.159.8/29 is directly connected.FastEthernet2/5
S  169.28.159.48/28 [1/0] via 169.28.159.10
B、C  169.28.155.0/24 is directly connected.Vlan450
0  E1 169.28.87.0/24 [120/21] via 162.105.254.24.2d16h.Vlan2
202.38.97.0/30 is subnetted.1 subnets
C  202.38.97.196 is directly connected.Vlan902
O  169.28.70.0/24 [120/2] via 162.105.254.5.2d16h.Vlan2
O  169.28.117.0/24 [120/2] via 162.105.254.15.2d16h,Vlan2
C  169.28.159.8/29 is directly connected.Vlan909
S  169.28.159.48/28 [1/0] via 169.28.159.10
C、C  169.28.155.0/24 is directly connected,Vlan450
0  El 169.28.87.0/24 [110/21] via 162.105.254.24.2d16h,Vlan2
202.38.97.0/30 is subnetted.1 subnets
C  202.38.97.196 is directly connected.Vlan902
0  169.28.70.0/24 [110/2] via 162.105.254.5,2d16h,Vlan2
O  169.28.1 17.0/24 [110/2] via 162.105.254.15,2d16h,Vlan2
C  169.28.159.8/29 is directly connected.Vlan909
S  169.28.159.48/28 [1/0] via Vlan908
D、C  169.28.155.0/24 is directly connected,Vlan450
O E1 169.28.87.0/24 [110/21] via 162.105.254.24,2d16h,Vlan2
202.38.97.0/30 is subnetted,1 subnets
C  202.38.97.196 is directly connected.Vlan902
O  169.28.70.0/24 [110/2] via 162.105.254.5,2d16h,Vlan2
O  169.28.117.0/24[110/2]via 162.105.254.15,2d16h,Vlan2
C  169.28.159.8/29 is directly connected,Vlan909
S  169.28.159.48/28 [1/0] via 169.28.159.10

答案D

解析 A选项中“202.38.97.196 is direct1v connected,POS3/0”处“POS3/0”处错误,该位置应该填入:具体的虚拟局域网号。B选项中“0 E1 169.28.87.0/24.[120/21]via 162.105.254.24,2d16h,Vlan2”,“O 169.28.70.0/24[120/2]via 162.105.254.5,2d16h,Vlan2”,“O 169.28.117.0/24[120/2]via162.105.254.15,2d16h,Vlan2”语句错误,O代表OSPF协议,其管理距离是110。C选项中,“S 169.28.159.48/28[1/0]via Vlan908”处“via Vlan908”错误,via后面应该是一个具体的IP地址。故选择D选项。
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