300-320 · Question #74
When an enterprise network is designed, which protocol provides redundancy for edge devices in the event of a first-hop failure?
The correct answer is B. HSRP. HSRP (Hot Standby Router Protocol) (B) is a Cisco First Hop Redundancy Protocol (FHRP) that provides gateway redundancy for end hosts. It creates a virtual IP and MAC address shared among a group of routers; one router is active and forwards traffic, while one or more are in…
Question
When an enterprise network is designed, which protocol provides redundancy for edge devices in the event of a first-hop failure?
Options
- AICMP
- BHSRP
- CSTP
- DHTTP
How the community answered
(32 responses)- A6% (2)
- B88% (28)
- C3% (1)
- D3% (1)
Explanation
HSRP (Hot Standby Router Protocol) (B) is a Cisco First Hop Redundancy Protocol (FHRP) that provides gateway redundancy for end hosts. It creates a virtual IP and MAC address shared among a group of routers; one router is active and forwards traffic, while one or more are in standby. If the active router fails, a standby router assumes the virtual IP/MAC with no reconfiguration needed on end hosts. ICMP (A) is for diagnostics, STP (C) provides Layer 2 loop prevention, and HTTP (D) is an application protocol - none provide first-hop gateway redundancy.
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