HSRP. Router 1 (master) and Router 2 (standby) same priority, when router 1 f0/1 (outside interface) down. Which tracking command will active to Router 2 (Choose 2)
A. Track 50
B. Track 50 decrement 20
C. ip tracking 50 interface f0/1 reachability
D. ip tracking 50 Interface (outside interface )ip routing (or line protocol)
Answer A) might also work because no decrement value is specified in the standby track command, the HSRP priority is decremented by the default value of 10 when the tracked interface goes down.