What is the Link Layer Discovery Protocol?
A. a discovery protocol used between Layer 3 devices to determine routes within a single autonomous system
B. a standardized IPv6 neighbor discovery protocol used to replace the ARP and broadcast mechanism used in IPv4
C. a standardized protocol for communicating directly-connected device information and capabilities.
D. an Aruba proprietary discovery protocol supported in all Aruba switches along with Cisco Discovery Protocol or CDP
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