Which feature must be incorporated into the campus LAN design to enable Wake on LAN?
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A. B. C. D.B.
Wake on LAN (WoL) is a feature that allows a device to be remotely powered on or awakened from sleep mode using a network signal. To enable Wake on LAN, the network must be designed to allow this type of traffic to pass through.
Out of the given options, the most suitable feature that must be incorporated into the campus LAN design to enable Wake on LAN is Proxy ARP on layer 3 devices. Proxy ARP is a technique used in computer networks to allow a device to act on behalf of another device's ARP (Address Resolution Protocol) requests.
When a device wants to communicate with another device on the same network, it sends out an ARP request to obtain the MAC address of the destination device. In a normal network setup, the device with the corresponding IP address responds with its MAC address. However, when Wake on LAN is used, the destination device may be in a sleep mode or powered off, and therefore cannot respond to the ARP request.
In such cases, Proxy ARP can be used to allow a device, such as a router, to respond on behalf of the sleeping device with its MAC address. This enables the Wake on LAN signal to be sent to the device, which will wake it up.
Therefore, by incorporating Proxy ARP on layer 3 devices, the campus LAN design can enable Wake on LAN and allow devices to be remotely powered on or awakened from sleep mode using a network signal.