下列Cisco第三层交换机的路由表信息中,路由表项全部正确的是

admin2017-06-18  21

问题 下列Cisco第三层交换机的路由表信息中,路由表项全部正确的是

选项 A、O    202.205.159.0/24 fl 10/201 via 202.1 12.62.242,00:23:00,Vlan2
C    202.112.7.0/24 iS directly connected.FastEtherect2/2
C    2 1 9.243.224.1 68isdirectlycormected.GigabitEthemet8/0
O E2    202.205.233.0/24 f110/201 via 202.112.62.242,00:23:00,V1an253
S    202.38.97.196[1/0] via 202.112.41.226
S*    0.0.0.0/0[1/0] via 202.112.38.17
B、0    202.205.159.0/24[110/20]via 202.112.62.242,00:23:00,Vlan2
C    202.11 2.7.0/24 iS directly connected.Vlan 157
C    219.243.224.1 68 is directly connected.1an30
O E2    202.205.233.0/24[1 10/20]via 202.1 12.62.242,00:23:00,Vlan253
S    202.38.97.196[0/01 via 202.112.41.226
S*    0.0.0.0/32[0/0] via 202.112.38.17
C、0    202.205.159.0/24[1 10/20]via 202.112.62.242,00:23:00,Vlan2
C    202.112.7.0/24 iS directly connected.Vlan 1 57
C    219.243.224.1 68 iS directly connected.Vlan30
O E2    202.205,233.0/24[110/20]via 202.1l 2.62.242,00:23:00,Vlan253
S    202.38.97.196[1/01 via 202.112.41.226
S*    0.0.0.0/0[1/0] via 202.112.38.17
D、0    202.205.159.0/24[1 15/20]via 202.112.62.242,00:23:00,Vlan2
C    202.112.7.0/24 iS directly connected.Vlanl57
C    219.243.224.168 iS directly connected.Vlan30
0 E2    202.205.233.0/24[115/201 via 202.112.62.242,00:23:00,Vlan253
S    202.38.97.196[1/0] via 202.112.41.226
S*    0.0.0.0/0[1/0]via 202.1 12.38.17

答案C

解析 0SPF路由缺省的管理距离值是110,所以选项D是错误的。在选项A)中,直连路由的后面是其所在的虚拟网络,而不能是交换机的端口号,所以A错误。静态路由的管理距离为1,所以选项B)错误。因而选项C正确。
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