Cisco Certified Network Associate (CCNA) Practice Exam

What command would you use to ensure that the current active router regains its status in HSRP?

1. #standby GROUP NUMBER preempt

2. #vrrp preempt enable

3. #activate vrid

4. #enable hsrp recovery

The correct answer is: #standby GROUP NUMBER preempt

The command to ensure that the current active router regains its status in Hot Standby Router Protocol (HSRP) is indeed the command that includes "standby GROUP NUMBER preempt." This command enables the preemption feature in HSRP. Preemption allows a router that has a higher priority to take over as the active router if it becomes available again after a failure. By using this command, you're instructing the router to reclaim its role as the active router if it is back online and has a higher priority than the current active router. This is essential for maintaining optimal routing conditions and ensuring that the most capable router is handling the traffic as soon as it is able. Other options presented do not pertain to HSRP. For example, vrrp relates to Virtual Router Redundancy Protocol, while the activation commands (like "activate vrid" and "enable hsrp recovery") either do not exist in the context of HSRP or refer to concepts that are not relevant to the context of active router status within HSRP. Therefore, the proper command is the one that explicitly deals with HSRP and allows for preemption, affirming the role of the higher-priority router in active status.