Predictable Behaviors of HSRP

AE.

Sure, I'd be happy to explain the correct answers to this question from the perspective of HSRP (Hot Standby Router Protocol).

HSRP is a protocol that allows two or more routers to work together to present the appearance of a single virtual router to hosts on a LAN. By doing so, it provides redundancy and fault tolerance for the default gateway on the LAN. HSRP routers communicate with each other to select a single active router, which handles traffic for the virtual router, and a standby router, which takes over in the event of a failure of the active router.

Now let's look at the two predictable behaviors for HSRP that are mentioned in the question:

A. The two routers negotiate one router as the active router and the other as the standby router.

This statement is true. When HSRP is configured on two or more routers, they negotiate with each other to select one router as the active router and another as the standby router. The active router is responsible for forwarding packets sent to the virtual IP address, while the standby router monitors the active router and takes over if it fails. This allows for redundancy and fault tolerance for the default gateway on the LAN.

E. The two routers share a virtual IP address that is used as the default gateway for devices on the LAN.

This statement is also true. When HSRP is configured, the active and standby routers share a virtual IP address that is used as the default gateway for devices on the LAN. This virtual IP address is what hosts on the LAN use as their default gateway, and it is associated with a virtual MAC address that is shared by the active and standby routers. This allows for redundancy and fault tolerance for the default gateway on the LAN.

So, to summarize, the two predictable behaviors for HSRP are that the routers negotiate one router as the active router and the other as the standby router, and that they share a virtual IP address that is used as the default gateway for devices on the LAN.