Which First Hop Redundancy Protocol maximizes uplink utilization and minimizes the amount of configuration that is necessary?

Question

Options

• AGLBP
• BHSRP v2
• CVRRP
• DHSRP v1

• A
  96% (43)
• C
  2% (1)
• D
  2% (1)

Explanation

GLBP: Gateway Load Balancing Protocol

GLBP (A) is correct because it is the only First Hop Redundancy Protocol (FHRP) that performs load balancing across multiple active gateways simultaneously, maximizing uplink utilization by distributing traffic across all routers rather than having standby routers sit idle. It also minimizes configuration by automatically assigning different virtual MAC addresses to each router, requiring far less manual setup than alternatives.

HSRP v1 (D) and HSRP v2 (B) are incorrect because both use an active/standby model where only one router forwards traffic at a time, leaving standby routers underutilized - wasting uplink capacity. VRRP (C) is similarly an active/standby protocol where only the Master router forwards traffic, though it is an open standard; it still does not inherently load-balance across multiple uplinks without complex additional configuration.

Memory Tip: Think of GLBP = "Go Load Balance, Please!" - it's the only protocol in the list that actively uses all gateways at once. If a question mentions load balancing or maximizing uplink utilization, GLBP is almost always the answer.

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