JNCIP-DC: Juniper Networks Certified Professional – Data Center (2022) — Question 12

You are configuring an EVPN overlay network. You want to ensure that leaf devices can respond to ARP requests from locally connected hosts, when the leaf device knows the MAC of the intended destination.
In this scenario, what should you configure on the leaf devices to accomplish this task?

Answer options

• A. proxy ARP
• B. static ARP entries
• C. persistent MAC learning
• D. IGMP snooping

Correct answer: A

Explanation

The correct answer is A, proxy ARP, as it allows the leaf device to respond to ARP requests on behalf of another device. Options B (static ARP entries) would require manual configuration for each MAC address, which is impractical. Option C (persistent MAC learning) is related to maintaining MAC address information but does not directly address ARP responses. Option D (IGMP snooping) pertains to multicast traffic management and is not relevant to ARP handling.