CISCO路由器中，下面哪个命令用于诊断OSPF身份验证故障（）

A . ENABLE B . CONFIG TERMINAL C . ENABLE PASS D . NO SHUTDOWN

A . ping B . tracert C . route D . netstat

A . 正确 B . 错误

A .  ipv6 host B .  ipv6 unicast-routing C .  ipv6 local D .  ipv6 neighbor

A . show router ospf statistics B . show router ospf neighbor C . show router ospf status D . show router ospf interface

A . display ospf areas B . display ospf lsdb C . display ospf D . display ospf peer

A . creat user B . adduser C . useradd D . user…password E . user creat

A .  Bandwidth，Delay，and MTU B .  Bandwidth C .  Bandwidth and MTU D .  Bandwidth ，MTU，Reliability，Delay，and Load

A . RouterA（config）# encrypted password cisco B . RouterA（config）# password encrypted cisco C . RouterA（config）# enable password cisco D . RouterA（config）# enable secret cisco E . RouterA（config）# service-password encryption cisco

A . 224.0.0.6 B . 224.0.0.1 C . 224.0.0.4 D . 224.0.0.5

A . debug ospf events B . show ip ospf border-routers C . show ip ospf neighbor D . show ip ospf database

A . copyflashtftp B . copyiostftp C . copytftpflash D . backupIOSdisk

A . [RTA-Serial0]ospf enable area 1 B . [RTA-Ethernet0]ospf enable area 1 C . [RTA-Serial0]ospf en area 2 D . [RTA]ospf enable area 2

A . delete user B . deluser C . userdel D . no user...password

A . create user B . adduser C . useradd D . user...password

A . 正确 B . 错误

A . A、show ip route B . B、show ip neighbour C . C、show ip ospf virtual-link D . D、show ip ospf adjacency

A . 该路由器的OSPF进程号是40 B . 指定引入RIP路由为Type2的外部路由 C . 指定引入的RIP路由标记为33 D . 制定引入的RIP路由度量值为50

A . display isis peer B . display isis neighbor C . show isis neighbor D . show clns neighbor

A．O E2 B．O E1 C．O IA D．O

A.debug ip ospf adj B.debug ip ospf auth C.debug ip ospf md5 D.debug ip ospf packet

A．HW1会注入类型3的默认路由到区域1 B．HW1会注入类型7的默认路由进区域1 C．HW1会注入类型7的默认路由到区域0 D．HW1需要在路由表里有一条默认路由 ,这样才能注入到区域1 E．HW1不需要在路由表里有默认路由,就可以注入默认到区域1

A．AUX端口 B．以太网端口 C．串行端口 D．控制台端口

A．show ip protocols B．show ip ospf neighbor C．show ip ospf D．show ip ospf interface