300-320 Question #637: Real Exam Question with Answer & Explanation

The correct answer is B: GLBP offers better load distribution.. GLBP (Gateway Load Balancing Protocol) offers better load distribution (B) than HSRP or VRRP because it uses a single virtual IP address but assigns different virtual MAC addresses to multiple active forwarders, distributing traffic across all gateways simultaneously rather than

Question

Which statements are true about FHRP? (Select two.)

Options

AIt is always recommended to be used with the routed access design.
BGLBP offers better load distribution.
CGLBP may lead to asymmetrical routing.
DHSRP does not support subsecond convergence time.

Explanation

GLBP (Gateway Load Balancing Protocol) offers better load distribution (B) than HSRP or VRRP because it uses a single virtual IP address but assigns different virtual MAC addresses to multiple active forwarders, distributing traffic across all gateways simultaneously rather than keeping one in standby. However, because different hosts may use different active gateways, return traffic from the network may flow back through a different switch than the outbound path - introducing asymmetrical routing (C). Option A is false - FHRP is not recommended with routed access designs because routing protocols handle gateway redundancy natively. Option D is false - HSRP supports subsecond convergence when configured with millisecond hello/hold timers.

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