In HSRP, what are two possible states for the routers? (Choose two.)
- Standby
- Active
- Subordinate
- Primary
- Backup
Explanation: The Hot Standby Router Protocol (HSRP) is designed to provide redundancy for a default gateway by allowing a group of routers to emulate a single virtual router. Within an HSRP group, two primary operational roles are assigned:
- Active Router: This router is responsible for forwarding packets sent to the virtual IP address and responding to ARP requests with the virtual MAC address. It periodically sends hello messages to inform other routers of its status.
- Standby Router: This router's main function is to monitor the operational status of the HSRP group. It listens for hello messages from the active router and is prepared to quickly assume packet-forwarding responsibility if the active router fails.
While an HSRP group can contain more than two routers, only one can be Active and one can be Standby at any given time; any additional routers in the group remain in a Listen state. Note that "Backup" and "Master" are the terms used for similar roles in the VRRP protocol, rather than HSRP.
Related exam: Modules 1 – 7: Checkpoint Exam: Network Switching Answers (CCNP ENCOR v9)
