A parks department lobby port was overloaded after someone daisy-chained a hub with many MACs. What access-layer control limits learned MAC count and defines a violation action?
Select an answer to reveal the explanation.
Short Explanation
Port security sets a guest limit on how many MAC addresses a lobby jack may learn. Chain a hub past that limit and the port protects, restricts, or shuts—your choice of violation mode.
Full Explanation
Port security constrains the number of MAC addresses on an access interface and applies a violation mode such as protect, restrict, or shutdown when the maximum is exceeded. That directly addresses daisy-chained hubs flooding MACs onto a lobby port. BGP max-prefix, OSPF stub, and uplink-only RA Guard do not enforce per-port MAC limits.