请匹配正确的答案,下列哪一个命令可以查看当前路由器配置OSPF的情况:路由器的标识(routerid),区域状态,接口状态,引入的外部路由情况等?()
A. display ospf
B. display ospf error
C. display ospf interface
D. display ospf peer
设置主接口由Up转Down后延迟30秒切换到备份接口,主接口由Down转Up后60秒钟切换回主接口的配置是?()
A. standby 30 60
B. standby timer 30 60
C. standby timer 60 30
D. standby timer enable-delay 30;standby timer disable-delay 60
一个运行在STUB区域的区域内路由器,它的LSDB中不会出现下列哪些LSA()
A. Router LSA(Type = 1)和AS External LSA(Type = 5)
B. Netwrok LSA(Type = 2)和AS External LSA(Type = 5)
C. Network Summary LSA(Type = 3)和AS External LSA(Type = 5)
D. ASBR Summary LSA(Type = 4)和AS External LSA(Type = 5)
显示当前IS-IS数据库信息的命令是()
A. ZXR10#show ip isis database
B. ZXR10#show isis adjacency
C. ZXR10#show ip isis summury
D. ZXR10#show ip isis interface