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)

Question

Options

• ATrack 50
• BTrack 50 decrement 20
• Cip tracking 50 interface f0/1 reachability
• Dip tracking 50 Interface (outside interface )ip routing (or line protocol)

• A
  14% (4)
• B
  79% (22)
• C
  7% (2)

Explanation

Two commands work together to achieve HSRP failover via interface tracking. Answer D creates the track object itself: 'ip track 50 interface f0/1 line-protocol' (or ip routing) - this defines track object 50 and monitors the state of the outside interface. Answer B applies the decrement action to HSRP: 'standby [group] track 50 decrement 20' - this tells HSRP to reduce Router 1's priority by 20 when track object 50 goes down. Since both routers start with equal priority, decrementing Router 1's priority by 20 makes Router 2 the higher-priority router, causing a preemption (if preempt is configured) and making Router 2 the active HSRP gateway. Option A (Track 50 alone) does nothing actionable for HSRP; option C has incorrect syntax.

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