Which command will need to be added to External_A to ensure that it will take over if serial 0/0 on External_B fails?()
A. standby 1 priority 130 B. standby 1 preempt C. standby 1 track fastethernet 0/0 D. standby 1 track 10.10.10.1
Routers can send hello messages in three HSRP states. Which ones are they?()
A. Standby B. Learn C. Listen D. Speak E. Active
Router R1 is configured for HSRP. Which of the following are valid HSRP states on R1? ()
A. Init B. Idle C. Active D. Standby E. Established F. Backup