Designing Cisco Enterprise Networks (ENSLD) — Question 48

Which feature must be incorporated into the campus LAN design to enable Wake on LAN?

Answer options

• A. dynamic ARP Inspection Snooping on layer 2 devices
• B. directed broadcasts on layer 3 devices
• C. proxy ARP on layer 3 devices
• D. DHCP Snooping on layer 2 devices

Correct answer: B

Explanation

Directed broadcasts on layer 3 devices are essential for Wake on LAN because they allow the broadcast packet to reach all devices in a subnet. The other options, such as dynamic ARP Inspection and DHCP Snooping, do not specifically facilitate the functionality needed for Wake on LAN to operate effectively.