After the implementation of several different types of switches from different vendors, a network engineer notices that directly connected devices that use Cisco
Discovery Protocol are not visible. Which vendor-neutral protocol could be used to resolve this issue?

A.
Local Area Mobility

B.
Link Layer Discovery Protocol

C.
NetFlow

D.
Directed Response Protocol

Explanation:
The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol in the Internet Protocol Suite used by network devices for advertising their identity,
capabilities, and neighbors on an IEEE 802 local area network, principally wired Ethernet. LLDP performs functions similar to several proprietary protocols, such as
the Cisco Discovery Protocol (CDP).

http://en.wikipedia.org/wiki/Link_Layer_Discovery_Protocol