Which action will allow for manual switching of HSRP nodes?

A network engineer is configuring a solution to allow failover of HSRP nodes during maintenance windows, as an alternative to powering down the active router and letting the network respond accordingly.

Which action will allow for manual switching of HSRP nodes?
A . Track the up/down state of a loopback interface and shut down this interface during maintenance
B . Adjust the HSRP priority without the use of preemption.
C . Disable and enable all active interfaces on the active HSRP node.
D . Enable HSRPv2 under global configuration, which allows for maintenance mode.

View Answer

Answer: A

Explanation:

The standby track command allows you to specify another interface on the router for the HSRP process to monitor in order to alter the HSRP priority for a given group. If the line protocol of the specified interface goes down, the HSRP priority is reduced. This means that another HSRP router with higher priority can become the active router if that router has standby preempt enabled. Loopback interfaces can be tracked, so when this interface is shut down the HSRP priority for that router will be lowered and the other HSRP router will then become the active one.

Reference: http://www.cisco.com/c/en/us/support/docs/ip/hot-standby-router-protocol-hsrp/13780-6.html