Designing Cisco Enterprise Networks (ENSLD) — Question 78

Which first hop redundancy protocol ensures that load balancing occurs over multiple routers using a single virtual IP address and multiple virtual MAC addresses?

Answer options

• A. GLBP
• B. IRDP
• C. VRRP
• D. HSRP

Correct answer: A

Explanation

GLBP (Gateway Load Balancing Protocol) is designed to provide load balancing over multiple routers while using a single virtual IP address and multiple virtual MAC addresses. The other protocols, such as HSRP and VRRP, do not support load balancing in the same way, as they typically designate a single active router to handle traffic.