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单项选择题

A.OSPF区域的数字标识称为区域IDB.骨干区域的ID为0C.区域ID为0的另一种表示形式是0.0.0.0D……

下列关于配置OSPF的描述中,错误的是( )。

A.OSPF区域的数字标识称为区域ID
B.骨干区域的ID为0
C.区域ID为0的另一种表示形式是0.0.0.0
D.区域ID的取值范围是0-200
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单项选择题下列是一台第三层交换机的部分路由表,其中管理距离为缺省值,正确的路由信息是( )。

A.O 162.105.153.0/24[110/2]via 162.105.254.8,00:23:00,Vlan2 O E1162.105.144.0/25[110/30]via 162.105.253.249,00:23:00,Vlan253 C162.105.157.0/24 is directly connected,via 162.105.157.1 C162.105.156.0/24 is directly connected,via 162.105.156.1 S162.105.239.0/25[1/0]via 202.112.41.6 S 162.105.125.128/26[1/0]via 202.112.7.1
B.0 162.105.153.0/24[120/2]via 162.105.254.8,00:23:00,Vlan2 O E1162.105.144.0/25[120/30]via 162.105.253.249,00:23:00,Vlan253 C162.106.t57.0/24 is directly connected,Vlan157 C162.105.156.0/24 is directly connected,Vlan30 S162.105.239.0/25[1/0]via 202.112.41.6 S162.105.125.128/26[1/0]via 202.112.7.1
C.162.105.153.0/24[110/2]via 162.105.254.8,00:23:00,Vlan2 O E1162.105.144.0/25[110/30]via 162.105.253.249,00:23:00,Vlan253 C162.105.157.0/24 is directly connected,Vlanl57 C162.105.156.0/24 is directly connected,Vlan30 S162.105.239.0/25[1/0]via 202.112.41.6 S162.105.125.128/26[1/0]via 202.112.7.0
D.0 162.105.153.0/24[110/2]via 162.105.254.8,00:23:00,Vlan2 O E1162.105.144.0/25[110/30]via 162.105.253.249,00:23:00,Vlan253 C162.105.157.0/24 is directly connected,Vlanl57 C162.105.156.0/24 is directly connected,Vlan30 S162.105.239.0/25[1/0]via 202.112.41.6 S162.105.125.128/26[1/0]via 202.112.7.1