Which capability is supported by Cisco Discovery Protocol but not by LLDP-MED?
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A. B. C. D. E.E.
Cisco Discovery Protocol provides an additional capability not found in LLDP-MED that allows the switch to extend trust to the phone.
In this case, the phone is now trusted to mark the packets received on the PC port accordingly.
This feature can be used to off-load the switch because now it does not need to police the information being received from the phone.
Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED) are two protocols used for device discovery in networks. While they share some similarities, there are also some differences in the capabilities they provide.
The capability that is supported by Cisco Discovery Protocol but not by LLDP-MED is LAN speed and duplex discovery (Option A). CDP can detect the speed and duplex of the link between two devices, which can be useful for troubleshooting network performance issues. This information is not available through LLDP-MED.
Network policy discovery (Option B) is a capability that is supported by both CDP and LLDP-MED. Network policies can include Quality of Service (QoS), VLAN assignment, and other configuration parameters.
Location identification discovery (Option C) is a capability that is supported by both CDP and LLDP-MED. This can be used to determine the physical location of a device in the network.
Power discovery (Option D) is a capability that is supported by both CDP and LLDP-MED. This can be used to determine the power requirements of a device and to manage power usage in the network.
Trust extension (Option E) is a capability that is supported by LLDP-MED but not by CDP. Trust extension is used to allow network devices to exchange security information, such as authentication and encryption parameters.
In summary, the capability that is supported by Cisco Discovery Protocol but not by LLDP-MED is LAN speed and duplex discovery.