Which two standards are supported by most Cisco Catalyst switches for negotiating that only links that pass the configuration checks are actually used in an EtherChannel.
A) PGP and LACP
B) PAgP and LACP
C) LDAP and LACP
D) PaGP and PGP

Question

Quizplus · Accepted Answer

Most Cisco Catalyst switches support the Cisco-proprietary Port Aggregation Protocol (PAgP) and the IEEE standard Link Aggregation Control Protocol (LACP), based on IEEE standard 802.3ad. Although differences exist between the two, to the depth discussed here, they both accomplish the same task: negotiate so that only links that pass the configuration checks are actually used in an EtherChannel.

Which Two Standards Are Supported by Most Cisco Catalyst Switches