350-401 · Question #169
350-401 Question #169: Real Exam Question with Answer & Explanation
The correct answer is A: GLBP. GLBP (Gateway Load Balancing Protocol) is the correct answer because it is the only First Hop Redundancy Protocol (FHRP) designed to perform load balancing across multiple routers simultaneously, allowing all devices in the group to actively forward traffic and making more effici
Question
Which First Hop Redundancy Protocol should be used to meet a design requirement for more efficient default gateway bandwidth usage across multiple devices?
Options
- AGLBP
- BLCAP
- CHSRP
- DVRRP
Explanation
GLBP (Gateway Load Balancing Protocol) is the correct answer because it is the only First Hop Redundancy Protocol (FHRP) designed to perform load balancing across multiple routers simultaneously, allowing all devices in the group to actively forward traffic and making more efficient use of available bandwidth. HSRP (Hot Standby Router Protocol) and VRRP (Virtual Router Redundancy Protocol) are incorrect because both use an active/standby model where only one gateway handles traffic at a time, leaving backup routers idle - wasting potential bandwidth. LCAP is a distractor and is not a valid FHRP; it may be confused with LACP (Link Aggregation Control Protocol), which is used for bundling physical links, not gateway redundancy.
🧠 Memory Tip: Think of GLBP = "Gets Load Balancing Priority" - it's the only FHRP that load-balances traffic across multiple active gateways, while HSRP and VRRP only have one active gateway at a time.
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