在路由器中使用show interface命令，如果看到的结果是接口状态和线路协议状态者是down，可能的原因是（）。

A.display

B.show

C.config

D.run

A.show controllers

B.show ip interface

C.show ip protocols

D.show running-config

E.show vlan

A.show controllers

B.show ip interface

C.show ip protocols

D.show running-config

E.show vlan

A.show controllers

B.show ip interface

C.show ip protocols

D.show running-config

E.show vlan

ault settings for all timers. An engineer ad ds the ip ospf hello - interval 6 command to R1‘s Fa0/0 configuration.Which of the following is true regarding the results from this change？（）

A. The show ip ospf neighbor command on R1 lists the revised Hello timer

B. The show ip ospf interfac e brief command on R1 lists the revised Hello timer

C. The R1 - R2 neighborship fails due to Hello timer mismatcH

D. The show ip ospf interface command on R1 lists the revised Hello timer

A.route print

B.show ip route

C.show routing-table

D.isplay ip routing-table

A. Show ip path

B. dis ip rout

C. Show interface

D. Show running-config

E. Show ip rip

A.show ip path

B.isplay ip routing-table

C.isplay interface

D.isplay running-config

E.Show ip rip

A.display

B.show

C.pwd

D.check