Which Layer 2 security feature restricts access on a switch port based on the MAC addresses of connected devices, helping to prevent unauthorized access to the network?
DHCP Snooping
Port Security
BPDU Guard
Dynamic ARP Inspection
Port Security allows a switch to limit and identify the MAC addresses of devices permitted on a given port. By configuring Port Security, network administrators can prevent unauthorized devices from connecting to the network through that port. DHCP Snooping and Dynamic ARP Inspection are used to protect against DHCP and ARP-based attacks, respectively, while BPDU Guard protects against potential spanning-tree loops caused by unauthorized switches.
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