HSRP. Router 1 (master) and Router 2 (standby), same priority. When router 1 f0/1 (outside interface) down.
With which tracking commands the Router 2 will be able to preempt? (Choose Two)
A . Track 50
B . Track 50 decrement 20
C . ip tracking 50 interface f0/1 reachability
D . ip tracking 50 Interface f0/1 ip routing (or line protocol)
Answer: B, D