medium
Single Answer
0Matt has enabled port security on the network switches in his building. What does port security do?
Answer Options
A
Filters by MAC address
B
Prevents routing protocol updates from being sent from protected ports
C
Establishes private VLANs
D
Prevents duplicate MAC addresses from connecting to the network
Correct Answer: A
Explanation
Port security filters by MAC address, permitting allow listed MAC addresses to connect to the port and blocking block listed MAC addresses. Port security can be static, using a predetermined list or dynamically allowing a specific number of addresses to connect, or it can be run in a combination mode of both static and dynamic modes.