What primary benefit does an FHRP provide?

First-Hop Redundancy Protocols (FHRPs) like HSRP, VRRP, and GLBP ensure network availability by providing a redundant default gateway for hosts. If the active gateway fails, a standby gateway automatically takes over, preventing a single point of failure and maintaining network connectivity. This significantly increases network uptime and reliability. Reduced ARP traffic is not a primary benefit; while some FHRPs might slightly alter ARP behavior, it's not their main purpose. Balancing traffic across multiple gateways is a feature of some FHRPs (like GLBP), but the overarching benefit is still availability, as load balancing without redundancy doesn't guarantee uptime during a failure. Reduced management overhead is incorrect; FHRPs add configuration complexity, not reduce it.