HSRP has been configured between two Company devices. Which of the following describe reasons for deploying HSRP? (Choose three)
A.
HSRP provides redundancy and fault tolerance
B.
HSRP allows one router to automatically assume the function of the second router if the second router fails
C.
HSRP allows one router to automatically assume the function of the second router if the second router starts
D.
HSRP provides redundancy and load balancing
Explanation:
One way to achieve near-100 percent network uptime is to use HSRP, which provides network redundancy for IP networks, ensuring that user traffic immediately and transparently recovers from first hop failures in network edge devices or access circuits. By sharing an IP address and a MAC (Layer 2) address, two or more routers can act as a single "virtual" router. The members of the virtual router group continually exchange status messages. This way, one router can assume the routing responsibility of another, should it go out of commission for either planned or unplanned reasons. Hosts continue to forward IP packets to a consistent IP and MAC address, and the changeover of devices doing the routing is transparent.
Through the use of multiple HSRP standby groups, traffic can be load balanced between the HSRP routers. For example, users on one VLAN could use one router as the primary HSRP router, and users on another VLAN can use the other HSRP router as the primary.