200-101 Question #107: Real Exam Question with Answer & Explanation

The correct answer is B: AVG. In GLBP (Gateway Load Balancing Protocol), the AVG (Active Virtual Gateway) is the single router elected to respond to ARP requests from hosts for the virtual IP address. The AVG replies with one of up to four different virtual MAC addresses, distributing clients across multiple

Question

In a GLBP network, who is responsible for the arp request?

Options

AAVF
BAVG
CActive Router
DStandby Router

Explanation

In GLBP (Gateway Load Balancing Protocol), the AVG (Active Virtual Gateway) is the single router elected to respond to ARP requests from hosts for the virtual IP address. The AVG replies with one of up to four different virtual MAC addresses, distributing clients across multiple AVFs (Active Virtual Forwarders) for load balancing. The AVF routers forward the actual traffic but do not respond to ARP requests - that responsibility belongs solely to the AVG. HSRP uses 'Active' and 'Standby' roles, which do not apply to GLBP.

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