Which statement about the default Cisco Discovery Protocol configuration is true?
A. CDPv1 is disabled on FastEthernet interfaces.
B. CDPv2 advertisements are unicast.
C. CDPv1 is enabled on Frame Relay subinterfaces.
D. CDPv2 advertisements are broadcast.
The broadcasting of Cisco DiscoveryProtocol Version 2 advertisementsis enabled by default on Cisco devices.
Each device configured for Cisco Discovery Protocol advertises at least one address at which the
device can receive messages and sends periodic advertisements(messages) to the well-known multicast address
01:00:0C:CC:CC:CC.
To disable or reenable this broadcasting, perform these tasks.
Disabling Cisco Discovery Protocol Version 2 Advertisements
SUMMARY STEPS
1. enable
2. configure terminal
3. no cdp advertise-v2
4. end
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/cdp/configuration/xe-3s/cdp-xe-3s-book/nm-cdp-discover-xe.pdf
Cisco Discovery Protocol is not supported on Frame Relay multipoint subinterfaces.
https://learningnetwork.cisco.com/thread/121979
Each device configured for Cisco Discovery Protocol advertises at least one address at which the
device can receive messages and sends periodic advertisements(messages) to the well-known multicast address
01:00:0C:CC:CC:CC
The broadcasting of Cisco Discovery Protocol Version 2 advertisements is enabled by default on Cisco devices.
https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/cdp/configuration/xe-3s/cdp-xe-3s-book/nm-cdp-discover-xe.pdf
The broadcasting of Cisco DiscoveryProtocol Version 2 advertisementsis enabled by default on Cisco devices
Multicast, I think